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.
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.
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.
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.
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.
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 through March; a hot, extremely dry summer season from April to late June; and a hot, relatively humid monsoon season from July through 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.
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 occur 37 nights per winter on average, and daytime highs fail to top 50 °F or 10 °C on nine days.
|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 weapons museum.
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.
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.
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 6,050 at the 2010 census, up from 5,038 in 2000.
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. It is the unincorporated neighborhoods east of incorporated Sahuarita, Arizona.
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.
Sells is a census-designated place (CDP) in Pima County, Arizona, United States. The population was 2,799 at the 2000 census. It is the capital of the Tohono O'odham Nation and the home of several of their tribal businesses, such as Tohono O'Odham Ki:Ki Association. Originally named Indian Oasis, by cattle-ranchers/businessmen brothers, Joseph and Louis Ménager in 1912. The Ménager brothers also built and ran the Indian Oasis Mercantile Store. The settlement took its present English name in 1918 to honor Indian Commissioner Cato Sells. The O'odham name means "Tortoise Got Wedged".
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.
Vail is a census-designated place (CDP) in Pima County, Arizona, United States. It is twenty-four miles southeast of Tucson. The population was 10,208 at the 2010 census, up from 588 in the 2000 census. The area is known for the nearby Colossal Cave, a large cave system, and the Rincon Mountains District of Saguaro National Park, a top tourism spot within Arizona.
Sonoita is a census-designated place (CDP) in Santa Cruz County, Arizona, United States. The population was 818 at the 2010 census.
Tubac is a census-designated place (CDP) in Santa Cruz County, Arizona, United States. The population was 1,191 at the 2010 census. The place name "Tubac" is an English borrowing from a Hispanicized form of the O'odham name, which translates into English as "rotten". The original O'odham name is written Cuwak. The first syllable is accented. When first taken into Spanish speech, it was spelled Tubaca. Finally over time the last "a" was dropped. Tubac is situated on the Santa Cruz River.
Tumacacori is an unincorporated community in Santa Cruz County, Arizona, United States, which 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 for the Congress Mine 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.
The Sierrita Mine is a large copper mine located in the Sierrita Mountains of Arizona, in the southwestern part of the United States. The mine is located in southern Pima County, southwest of Tucson and west of Green Valley-Sahuarita.
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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