Green Valley, Arizona
Tile rooftop in Green Valley
|• Total||32.26 sq mi (83.55 km2)|
|• Land||32.24 sq mi (83.51 km2)|
|• Water||0.01 sq mi (0.04 km2)|
|Elevation||2,980 ft (908 m)|
|Time zone||UTC-7 (Mountain (MST))|
|GNIS feature ID||0037327|
Green Valley is a census-designated place (CDP) in Pima County, Arizona, United States. The population was 23,765 at the 2010 census.
A census-designated place (CDP) is a concentration of population defined by the United States Census Bureau for statistical purposes only. CDPs have been used in each decennial census since 1980 as the counterparts of incorporated places, such as self-governing cities, towns, and villages, for the purposes of gathering and correlating statistical data. CDPs are populated areas that generally include one officially designated but currently unincorporated small community, for which the CDP is named, plus surrounding inhabited countryside of varying dimensions and, occasionally, other, smaller unincorporated communities as well. CDPs include small rural communities, colonias located along the U.S. border with Mexico, and unincorporated resort and retirement communities and their environs.
Pima County is a county in the south central region of the U.S. state of Arizona. As of the 2010 census, the population was 980,263, making it Arizona's second-most populous county. The county seat is Tucson, where nearly all of the population is centered. The county is named after the Pima Native Americans who are indigenous to this area.
Arizona is a state in the southwestern region of the United States. It is also part of the Western and the Mountain states. It is the sixth largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona shares the Four Corners region with Utah, Colorado, and New Mexico; its other neighboring states are Nevada and California to the west and the Mexican states of Sonora and Baja California to the south and southwest.
Green Valley is located along the western side of the Santa Cruz River at(31.8556, -111.0001). Continental is to the east of Green Valley, on the other side of the river.
The Santa Cruz River is a river in Southern Arizona and northern Sonora, Mexico. It is approximately 184 miles (296 km) long.
Continental is a populated place located about 25 mi (40 km) south of Tucson, in Pima County, Arizona, near the town of Sahuarita and the retirement community of Green Valley. Once a center for cotton production, Continental is now nearly surrounded by large pecan orchards and Green Valley subdivisions. It is also the closest town to Madera Canyon, a premier birdwatching area and tourist attraction located in the Santa Rita Mountains.
According to the United States Census Bureau, the CDP has a total area of 26.3 square miles (68.0 km²), of which, 26.2 square miles (68.0 km²) of it is land and 0.04 square miles (0.1 km²) of it (0.08%) is water.
The United States Census Bureau is a principal agency of the U.S. Federal Statistical System, responsible for producing data about the American people and economy. The Census Bureau is part of the U.S. Department of Commerce and its director is appointed by the President of the United States.
Green Valley is twenty miles (32 km) south of Tucson and 40 miles (64 km) north of Nogales, Sonora, Mexico. Surrounded by copper mines, and near the cycling, hiking and birding areas of the Santa Rita Mountains, Green Valley is an unincorporated retirement community composed of 59 Homeowner Associations.
Heroica Nogales, more commonly known as Nogales, is a city and the county seat of the Municipality of Nogales. It is located on the northern border of the Mexican state of Sonora. The city is abutted on its north by the city of Nogales, Arizona, across the U.S.-Mexico border.
Sonora, officially Estado Libre y Soberano de Sonora, is one of 31 states that, with Mexico City, comprise the 32 federal entities of United Mexican States. It is divided into 72 municipalities; the capital city is Hermosillo. Sonora is bordered by the states of Chihuahua to the east, Baja California to the northwest and Sinaloa to the south. To the north, it shares the U.S.–Mexico border with the states of Arizona and New Mexico, and on the west has a significant share of the coastline of the Gulf of California.
The Santa Rita Mountains, located about 65 km (40 mi) southeast of Tucson, Arizona, extend 42 km (26 mi) from north to south, then trending southeast. They merge again southeastwards into the Patagonia Mountains, trending northwest by southeast. The highest point in the range, and the highest point in the Tucson area, is Mount Wrightson, with an elevation of 9,453 feet, The range contains Madera Canyon, one of the world's premier birding areas. The Smithsonian Institution's Fred Lawrence Whipple Observatory is located on Mount Hopkins. The range is one of the Madrean sky islands.
The largest of the mines are the Sierrita Mine owned by Freeport-McMoRanand the Mission Mine of ASARCO. Compared to other mines in Arizona the two mines are large; Sierrita is low-grade.
Freeport-McMoRan Inc., (FMCG) often called Freeport, is a mining company based in the Freeport-McMoRan Center, in Phoenix, Arizona.
Copper mining in Arizona, a state of the United States, has been a major industry since the 19th century. In 2007 Arizona was the leading copper-producing state in the US, producing 750 thousand metric tons of copper, worth a record $5.54 billion. Arizona's copper production was 60% of the total for the United States. Copper mining also produces gold and silver as byproducts. Byproduct molybdenum from copper mining makes Arizona the nation's second-largest producer of that metal. Although copper mineralization was found by the earliest Spanish explorers of Arizona, the territory was remote, and copper could seldom be profitably mined and shipped. Early Spanish, Mexican, and American prospectors searched for gold and silver, and ignored copper. It was not until the completion of the Southern Pacific Railroad in 1876 that copper became broadly economic to mine and ship to market.
Green Valley has a borderline hot semi-arid/hot desert climate (Köppen BSh/BWh) with three seasons: a warm to mild winter with chilly nights from October to March, a hot, extremely dry summer season from April to June, and a hot, relatively humid monsoon season from July to September. Outside monsoon season, rainfall is uniformly scarce, having exceeded 4.0 inches or 100 millimetres only in October 2000 amongst other months. The wettest month on record has been July 1990 with 10.43 inches or 264.9 millimetres, of which 3.22 inches or 81.8 millimetres fell on July 15. The wettest calendar year has been 1993 with 22.00 inches or 558.8 millimetres while the driest since 1988 has been 1997 with 9.90 inches or 251.5 millimetres.
A semi-arid climate or steppe climate is the climate of a region that receives precipitation below potential evapotranspiration, but not as low as a desert climate. There are different kinds of semi-arid climates, depending on variables such as temperature, and they give rise to different biomes.
The desert climate, is a climate in which there is an excess of evaporation over precipitation. The typically bald, rocky, or sandy surfaces in desert climates hold little moisture and evaporate the little rainfall they receive. Covering 14.2% of earth's land area, hot deserts may be the most common type of climate on earth.
The North American monsoon, variously known as the Southwest monsoon, the Mexican monsoon, the New Mexican monsoon, or the Arizona monsoon, is a pattern of pronounced increase in thunderstorms and rainfall over large areas of the southwestern United States and northwestern Mexico, typically occurring between July and mid September. During the monsoon, thunderstorms are fueled by daytime heating and build up during the late afternoon-early evening. Typically, these storms dissipate by late night, and the next day starts out fair, with the cycle repeating daily. The monsoon typically loses its energy by mid-September when drier and cooler conditions are reestablished over the region. Geographically, the North American monsoon precipitation region is centered over the Sierra Madre Occidental in the Mexican states of Sinaloa, Durango, Sonora and Chihuahua.
Temperatures are uniformly hot during the summer and monsoon seasons, with 90 °F or 32.2 °C exceeded on 154 days during an average year, and 77 nights failing to fall below 70 °F or 21.1 °C, including every night during August 2011. Frosts are relatively rare, occurring only on 37 nights per winter, and only nine days failing to top 50 °F or 10 °C.
|Climate data for Green Valley, Arizona (1988-2016)|
|Record high °F (°C)||88|
|Average high °F (°C)||67.5|
|Average low °F (°C)||36.9|
|Record low °F (°C)||17|
|Average rainfall inches (mm)||0.78|
|Average rainy days (≥ 0.01 inch)||4||4||4||2||1||2||11||10||5||4||2||4||53|
|Source: Tucson National Weather Service|
|U.S. Decennial Census|
As of the census of 2010, there were 21,391 people residing in Green Valley. The population density was 663.4 people per square mile. There were 17,322 housing units. The racial makeup of the CDP was 93.35% non-Hispanic White, 0.4% Black or African American, 0.3% Native American, 0.7% Asian, 0.36% from other races, and 0.7% from two or more races. 4.9% of the population were Hispanic or Latino of any race.
The median income for a household in Green Valley was $46,732 in 2014 dollars. The per capita income for the CDP was $35,416. 4.6% of the population was below the poverty line.
As of the censusof 2000, there were 17,283 people, 9,995 households, and 6,296 families residing in the CDP. The population density was 658.6 people per square mile (254.3/km²). There were 13,263 housing units at an average density of 505.4 per square mile (195.2/km²). The racial makeup of the CDP was 98.35% White, 0.18% Black or African American, 0.19% Native American, 0.33% Asian, 0.05% Pacific Islander, 0.36% from other races, and 0.54% from two or more races. 2.28% of the population were Hispanic or Latino of any race.
There were 9,995 households out of which 1.5% had children under the age of 18 living with them, 59.8% were married couples living together, 2.5% had a female householder with no husband present, and 37.0% were non-families. 34.1% of all households were made up of individuals and 28.5% had someone living alone who was 65 years of age or older. The average household size was 1.71 and the average family size was 2.07.
In the CDP, the population consisted of 1.6% of inhabitants under the age of 18, 0.7% from 18 to 24, 2.8% from 25 to 44, 21.7% from 45 to 64, and 73.3% who were 65 years of age or older. The median age was 72 years. For every 100 females, there were 79.7 males. For every 100 females age 18 and over, there were 79.3 males.
The median income for a household in the CDP was $40,213, and the median income for a family was $48,369. Males had a median income of $34,500 versus $25,932 for females. The per capita income for the CDP was $31,138. About 1.7% of families and 3.0% of the population were below the poverty line, including 3.1% of those under age 18 and 2.8% of those age 65 or over.
According to a 2007 report by Pima County, 76,000 acre feet (94,000,000 m3) of water was pumped from the aquifer in the Upper Santa Cruz Valley in 2006, with 85 percent of that water being used for mining and agriculture. The remaining 15 percent was split between water used for golf courses and residential/commercial water use. The report explains that "The Green Valley area does not have a sustainable water supply given current groundwater pumping rates... the water table in Green Valley has been declining in past years, and is expected to decline even faster as water demands [continue to increase]...". The report concludes that "Water supplies will become critical within the next ten years."
The original 2007 report from Pima County contained a number of recommendations. Four out of five of the recommendations suggested taking advantage the "Central Arizona Project (CAP) renewable water supplies, as well as recharge of the same".The report states, "the size of a pipeline that would convey Central Arizona Project water for direct use or recharge for the entire Upper Basin would need to be at least 72 inches in diameter." As of 2017 one 36" CAP pipeline has been completed with a second 36" CAP pipeline slated for completion in the later part of 2017. (Note, however, that two 36-inch pipes provide only one half the capacity of a single 72-inch pipe, because capacity scales with cross-sectional area, not with diameter.)
The Upper Santa Cruz Valley has several major water users, all pumping water out of the same aquifer. Most area water users are for-profit companies. ASARCO-Mission Mine, Freeport-McMoRan Sierrita Mine and Farmers Investment Co. (farming) are industrial scale water users. Residential water is provided by Farmers Water Company, Sahuarita Water Company, Las Quintas Serenas Water Company, Quail Creek Water Company, Community Water Company of Green Valley (a nonprofit member owned cooperative), and the Green Valley Water District (a governmental water utility). The proliferation of water companies can be partially explained by the fact that Arizona water law places few limits on the amount of water that can be pumped with costs limited only to drilling, pumping, distribution, etc. Since 2007 the Upper Santa Cruz Providers and Users Group (USCPUG) has been working to bring all local water entities, including the Town of Sahuarita, to the same table. Most of the water users and utilities are now members of USCPUG. The organization has published an analysis and projection of area water use through 2030. It has joined with the U S Bureau of Reclamation to lay the groundwork for transportation and use of Colorado River water from the Central Arizona Project canal to greatly reduce reliance on pumping groundwater. If a system is successfully completed, the excess pumping will be largely or fully eliminated. The process through design and construction is expected to take several years with funding being the major challenge.
In 2005 Green Valley was the host of the SAE Mini Baja 100 competition. Mini Baja vehicles are custom made by students. In this case there were about 60 teams from various universities, including some from Canada. ETS- École de technologie supérieure of the Université du Québec, from Montreal, Quebec, Canada, won the competition.[ citation needed ]
Green Valley is home to the Titan Missile MuseumAmerica’s Largest Nuclear Weapon museum.
Santa Cruz is a county in southern Arizona. As of the 2010 census, its population is 47,420. The county seat is Nogales. The county was established in 1899. It borders Pima County to the north and west, Cochise County to the east, and the Mexican state of Sonora to the south.
Pima is a town in Graham County, Arizona, United States. As of the 2010 census, the population of the town was 2,387, up from 1,989 at the 2000 census. The estimated population in 2015 was 2,524. Pima is part of the Safford Micropolitan Statistical Area.
Ajo is a census-designated place (CDP) in Pima County, Arizona, United States. The population was 3,304 at the 2010 census. Ajo is located on State Route 85 just 43 miles (69 km) from the Mexican border. It is the closest community to Organ Pipe Cactus National Monument.
Avra Valley is a census-designated place (CDP) in Pima County, Arizona, United States. The population was 5,038 at the 2000 census.
Catalina Foothills is a census-designated place (CDP) located north of Tucson in Pima County, Arizona, United States. Situated in the southern foothills of the Santa Catalina Mountains, Catalina Foothills had a population of 50,796 at the 2010 census. Catalina Foothills is one of the most affluent communities in Arizona and in the U.S., with the 6th highest per capita income in Arizona, and the 14th highest per capita income in the U.S. of communities with a population of at least 50,000. The Catalina Foothills community includes some of Arizona's most expensive homes and land, and has the highest median property value. It boasts some of the nation's most prestigious resorts, golf courses, and spas.
Corona de Tucson is a census-designated place (CDP) in Pima County, Arizona, United States. The population was 5,675 at the 2010 census, an increase of 598% from the 2000 population of 813.
East Sahuarita was a census-designated place (CDP) in Pima County, Arizona, United States. The population was 1,419 at the 2000 census.
Picture Rocks is a census-designated place (CDP) in Pima County, Arizona, United States. The population was 8,139 at the 2000 census.
Sahuarita is a town in Pima County, Arizona, United States. Sahuarita is located south of the Tohono O'odham Nation and abuts the north end of Green Valley, 15 miles (24 km) south of Tucson. The population was 25,259 at the 2010 census.
Santa Rosa, or Kaij Mek (O'odham), is a census-designated place (CDP) in Pima County, Arizona, United States. The population was 438 at the 2000 census.
Tanque Verde is a suburban census-designated place (CDP) in Pima County, Arizona, United States, northeast of Tucson. The population was 16,195 at the 2000 census.
Tortolita was a census-designated place (CDP) in Pima County, Arizona, United States. The population was 3,740 at the 2000 census. Tortolita was situated between the growing incorporated towns of Oro Valley and Marana with most of the area previously part of the CDP having been annexed by the two towns during the 2000s. The remaining parts of the CDP that have not been annexed continue to be unincorporated portions of Pima County.
Sonoita is a census-designated place (CDP) in Santa Cruz County, Arizona, United States. The population was 818 at the 2010 census.
Tumacacori is an unincorporated community in Santa Cruz County, Arizona, United States It abuts the community of Carmen, Arizona. Together, the communities constitute the Tumacacori-Carmen census-designated place (CDP). The population of the CDP was 393 at the 2010 census.
Congress is a census-designated place (CDP) in Yavapai County, Arizona, United States. Once a gold-mining center and then a ghost town, Congress now serves as a retirement and bedroom community for nearby Wickenburg. The population was 1,717 at the 2000 census.
Boulder Creek is a census-designated place (CDP) in Santa Cruz County, California, with a population of 4,923 as of the 2010 census. It is named for Boulder Creek.
Felton is a census-designated place (CDP) in Santa Cruz County, California, United States. The population was 4,057 as of 2010 census and according to the United States Census Bureau, the CDP has a total area of 4.6 square miles (12 km2), all of it land.
The Sierrita Mine is a large copper mine located in the Sierrita Mountains of Arizona, in the southwestern part of the United States. Sierrita was operated by Phelps Dodge until 2007 when it was acquired by Freeport-McMoRan. The mine represents one of the largest copper reserves in the United States and in the world. The deposit had estimated reserves of 907 million metric tons of ore grading 0.26% copper and 0.03% molybdenum along with additional 2.4 billion tons at 0.21% copper and 0.02% molybdenum.
The Sierrita Mountains is a minor mountain range about forty miles southwest of Tucson, in Pima County, Arizona. Historically, the area has seen extensive mining and ranching activity: several ranches, abandoned mines, and the large Sierrita Mine are located in the area. The highest point in the mountains is Keystone Peak, which rises to 6,188 feet (1,886 m).
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