Guam's at-large congressional district

Guam's at-large congressional district
Guam's at-large congressional district
Delegate	James Moylan ; R–Tumon
Area	210 sq mi (540 km2)
Population (2020)	153,836
Median household; income	34,598
Ethnicity	56.4% other; 28.6% Asian ; 6.9% White ; 2.2% Hispanic ; 0.1% Black ; 0.0% Native American ;

Last updated November 17, 2025

Guam's at-large congressional district comprises the entire area of the United States territory of Guam. Guam has been represented in the United States House of Representatives by a non-voting delegate since 1972.^[1] Its first delegate, Antonio Borja Won Pat, had been serving as the Washington Representative lobbying for a delegate since 1965, elected for four-year terms in 1964 and 1968.^[2] It is currently represented by Republican James Moylan who has represented the district since 2023.

List of delegates representing the district

Representative	Party	Term	Cong ress	Electoral history
District established February 12, 1970
Vacant		February 12, 1970 – January 3, 1973	91st 92nd
Antonio B. Won Pat (Sinajana)	Democratic	January 3, 1973 – January 3, 1985	93rd 94th 95th 96th 97th 98th	Elected in 1972. Re-elected in 1974. Re-elected in 1976. Re-elected in 1978. Re-elected in 1980. Re-elected in 1982. Lost re-election.
Vicente T. Blaz (Ordot)	Republican	January 3, 1985 – January 3, 1993	99th 100th 101st 102nd	Elected in 1984. Re-elected in 1986. Re-elected in 1988. Re-elected in 1990. Lost re-election.
Robert A. Underwood (Yona)	Democratic	January 3, 1993 – January 3, 2003	103rd 104th 105th 106th 107th	Elected in 1992. Re-elected in 1994. Re-elected in 1996. Re-elected in 1998. Re-elected in 2000. Retired to run for Governor.
Madeleine Z. Bordallo (Hagåtña)	Democratic	January 3, 2003 – January 3, 2019	108th 109th 110th 111th 112th 113th 114th 115th	Elected in 2002. Re-elected in 2004. Re-elected in 2006. Re-elected in 2008. Re-elected in 2010. Re-elected in 2012. Re-elected in 2014. Re-elected in 2016. Lost renomination.^[3]^[4]
Michael San Nicolas (Dededo)	Democratic	January 3, 2019 – January 3, 2023	116th 117th	Elected in 2018.^[3]^[5] Re-elected in 2020. Retired to run for Governor.
James Moylan (Tumon)	Republican	January 3, 2023 – present	118th 119th	Elected in 2022. Re-elected in 2024.

Recent election results

1972

Guam Delegate to the United States House of Representatives election, November 7, 1972^[6]
Party		Candidate	Votes	%
	Democratic	Antonio Borja Won Pat	12,651	58.8%
	Republican	Pedro Perez	8,847	41.1%
	Write-in		15	0.1%
Total votes			21,513	100.00%
	Democratic win

1974

Guam Delegate to the United States House of Representatives election, November 4, 1974^[6]
Party		Candidate	Votes	%
	Democratic	Antonio Borja Won Pat (Incumbent)	18,551	100.00%
Total votes			18,551	100.00%
	Democratic hold

1976

Guam Delegate to the United States House of Representatives election, November 2, 1976^[6]
Party		Candidate	Votes	%
	Democratic	Antonio Borja Won Pat (Incumbent)	19,038	90.2%
	Write-in		2,077	9.8%
Total votes			21,115	100.00%
	Democratic hold

1978

Guam Delegate to the United States House of Representatives election, November 7, 1978^[6]
Party		Candidate	Votes	%
	Democratic	Antonio Borja Won Pat (Incumbent)	21,123	91.0%
	Write-in		2,088	9.0%
Total votes			23,211	100.00%
	Democratic hold

1980

Guam Delegate to the United States House of Representatives election, November 4, 1980^[6]
Party		Candidate	Votes	%
	Democratic	Antonio Borja Won Pat (Incumbent)	14,834	58.3%
	Republican	Antonio M. Palomo	10,622	41.7%
Total votes			25,456	100.00%
	Democratic hold

1982

Guam Delegate to the United States House of Representatives election, November 2, 1982^[6]
Party		Candidate	Votes	%
	Democratic	Antonio Borja Won Pat (Incumbent)	15,627	51.7%
	Republican	Vincente Thomas "Ben" Blaz	14,579	48.3%
Total votes			30,206	100.00%
	Democratic hold

1984

Guam Delegate to the United States House of Representatives election, November 6, 1984^[6]
Party		Candidate	Votes	%
	Republican	Ben Garrido Blaz	15,839	50.3%
	Democratic	Antonio Borja Won Pat (Incumbent)	15,485	49.2%
	Write-in		144	0.5%
Total votes			31,468	100.00%
	Republican gain from Democratic

1986

Guam Delegate to the United States House of Representatives election, November 4, 1986^[6]
Party		Candidate	Votes	%
	Republican	Ben Garrido Blaz (Incumbent)	22,207	64.6%
	Democratic	Frank C. Torres Jr.	12,147	35.4%
Total votes			34,354	100.00%
	Republican hold

1988

Guam Delegate to the United States House of Representatives election, November 8, 1988^[6]
Party		Candidate	Votes	%
	Republican	Ben Garrido Blaz (Incumbent)	16,185	54.7%
	Democratic	Vincent C. Pangelinan	13,426	45.3%
Total votes			29,611	100.00%
	Republican hold

1990

Guam Delegate to the United States House of Representatives election, November 6, 1990^[6]
Party		Candidate	Votes	%
	Republican	Ben Garrido Blaz (Incumbent)	21,390	55.1%
	Democratic	Vincent C. Pangelinan	16,437	42.4%
	Write-in		976	2.5%
Total votes			38,803	100.00%
	Republican hold

1992

Guam Delegate to the United States House of Representatives election, November 3, 1992^[6]
Party		Candidate	Votes	%
	Democratic	Robert A. Underwood	18,462	55.3%
	Republican	Ben Garrido Blaz (Incumbent)	14,921	44.7%
Total votes			33,383	100.00%
	Democratic gain from Republican

1994

Guam Delegate to the United States House of Representatives election, November 8, 1994^[6]
Party		Candidate	Votes	%
	Democratic	Robert A. Underwood (Incumbent)	36,379	100.00%
Total votes			36,379	100.00%
	Democratic hold

1996

Guam Delegate to the United States House of Representatives election, November 5, 1996^[6]
Party		Candidate	Votes	%
	Democratic	Robert A. Underwood (Incumbent)	34,395	100.00%
Total votes			34,395	100.00%
	Democratic hold

1998

Guam Delegate to the United States House of Representatives election, November 3, 1998^[6]
Party		Candidate	Votes	%
	Democratic	Robert A. Underwood (Incumbent)	34,179	76.1%
	Republican	Manuel Q. Cruz	10,763	23.9%
Total votes			44,942	100.00%
	Democratic hold

2000

Guam Delegate to the United States House of Representatives election, November 7, 2000^[6]
Party		Candidate	Votes	%
	Democratic	Robert A. Underwood (Incumbent)	29,099	78.1%
	Republican	Manuel Cruz	8,167	21.9%
Total votes			37,266	100.00%
	Democratic hold

2002

Guam Delegate to the United States House of Representatives election, November 5, 2002^[6]
Party		Candidate	Votes	%
	Democratic	Madeleine Bordallo	27,081	63.6%
	Republican	Joseph F. Ada	14,836	34.9%
	Write-in		662	1.5%
Total votes			42,579	100.00%
	Democratic hold

2004

Guam Delegate to the United States House of Representatives election, November 2, 2004^[6]
Party		Candidate	Votes	%
	Democratic	Madeleine Bordallo (Incumbent)	31,051	97.4%
	Write-in		837	2.6%
Total votes			31,888	100.00%
	Democratic hold

2006

Guam Delegate to the United States House of Representatives election, November 7, 2006^[6]
Party		Candidate	Votes	%
	Democratic	Madeleine Bordallo (Incumbent)	32,677	96.5%
	Write-in		1,201	3.5%
Total votes			33,878	100.00%
	Democratic hold

2008

Guam Delegate to the United States House of Representatives election, November 4, 2008^[6]
Party		Candidate	Votes	%
	Democratic	Madeleine Bordallo (Incumbent)	28,247	94.6%
	Write-in		1,617	5.4%
Total votes			29,864	100.00%
	Democratic hold

2010

Guam Delegate to the United States House of Representatives election, November 2, 2010^[6]
Party		Candidate	Votes	%
	Democratic	Madeleine Bordallo (Incumbent)	35,919	95.9%
	Republican	Write-in	796	2.1%
	Democratic	Write-in	706	1.9%
Total votes			37,421	100.00%
	Democratic hold

2012

2012 Guam's at-large congressional district^[7]^[8]
Party		Candidate	Votes	%
	Democratic	Madeleine Bordallo (incumbent)	20,174	60.5
	Republican	Frank F. Blas Jr.	13,160	39.5
Total votes			33,334	100
	Democratic hold

2014

2014 Guam's at-large congressional district ^[9]
Party		Candidate	Votes	%	±%
	Democratic	Madeleine Bordallo (incumbent)	20,693	57.86%	−2.64%
	Republican	Margaret Metcalfe	14,956	41.82%	+2.32%
	n/a	Write-ins	113	0.32%	N/A
Total votes			35,762	'*100.0%'*	N/A
	Democratic hold

2016

2016 Guam's at-large congressional district^[10]
Party		Candidate	Votes	%	±%
	Democratic	Madeleine Bordallo (incumbent)	18,345	53.69%	−4.17%
	Republican	Felix Perez Camacho	15,617	45.71%	+3.83%
	Write-in		206	0.60%
Total votes			34,168	100.0%	N/A
	Democratic hold

2018

2018 Guam's at-large congressional district^[11]
Party		Candidate	Votes	%	±%
	Democratic	Michael San Nicolas	19,193	54.85%	+1.16%
	Republican	Doris Flores-Brooks	15,398	44.01%	−1.70%
	Write-in		399	1.14%	+0.54%
Total votes			34,990	100.00%	N/A
	Democratic hold

2020

2020 Guam Delegate general election results^[12]
Party		Candidate	Votes	%
	Democratic	Michael San Nicolas (incumbent)	13,000	45.95
	Democratic	Robert A. Underwood	9,300	32.87
	Republican	Wil Castro	5,942	21.00
	Write-in		51	0.18
Total votes			28,293	100.00

2020 Guam Delegate election runoff results^[13]
Party		Candidate	Votes	%
	Democratic	Michael San Nicolas (incumbent)	10,467	59.62
	Democratic	Robert A. Underwood	7,090	40.38
	—	Overvotes	5	.03
	—	Undervotes	28	.16
Total votes			17,355	100.00

2022

2022 United States House of Representatives election in Guam^[14]
Party		Candidate	Votes	%	±%
	Republican	James Moylan	17,075	52.19%	+31.19%
	Democratic	Judith Won Pat	15,427	47.15%	−31.67%
	Write-in		217	0.66%	+0.48%
Total votes			32,719	100.0%
	Republican gain from Democratic

References

↑ Guam v. Guerrero 290 F.3d 1210, 1214 fn. 5 (2002 9th Cir.) (citing 48 U.S.C. § 1711)
↑ "Bioguide Search".
1 2 "2018 Primary Election Results". Guam Election Commission. August 26, 2018. Archived from the original on October 20, 2018. Retrieved August 30, 2018.
↑ Garcia, Eric (August 27, 2018). "Guam Delegate Leaving Congress After Primary Loss". Roll Call . Archived from the original on August 27, 2018. Retrieved August 28, 2018.
↑ Congressman Gregorio Kilili Camacho Sablan. Kilili congratulates Michael San Nicolas, new Democratic Guam Delegate Archived December 11, 2020, at the Wayback Machine , November 6, 2018.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 "Election Statistics, 1920 to Present | US House of Representatives: History, Art & Archives". History.house.gov. September 11, 2001. Retrieved January 21, 2020.
↑ Taitano, Zita (November 8, 2012). "Guam Democrats to maintain majority in Legislature". Marianas Variety . Retrieved November 15, 2012.
↑ "ELECTION UPDATE: 58 of 58 precincts reporting". Pacific Daily News . November 7, 2012. Retrieved November 15, 2012.^{[ permanent dead link ]}
↑ "United States House of Representatives election in Guam, 2014". Ballotpedia.
↑ "GUAM OFFICIAL RESULTS GENERAL ELECTION NOVEMBER 8, 2016". Guam Election Commission.
↑ "GUAM OFFICIAL RESULTS GENERAL ELECTION NOVEMBER 6, 2018". Guam Election Commission.
↑ "Summary Results Report" (PDF). November 4, 2020.
↑ "Summary Runoff Results Report" (PDF). Retrieved January 6, 2023.
↑ "2022 General Election: Unofficial Results". Guam Election Commission.

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[1] Guam v. Guerrero 290 F.3d 1210, 1214 fn. 5 (2002 9th Cir.) (citing 48 U.S.C. § 1711)

[2] "Bioguide Search".

[GEC-3] 1 2 "2018 Primary Election Results". Guam Election Commission. August 26, 2018. Archived from the original on October 20, 2018. Retrieved August 30, 2018.

[4] Garcia, Eric (August 27, 2018). "Guam Delegate Leaving Congress After Primary Loss". Roll Call . Archived from the original on August 27, 2018. Retrieved August 28, 2018.

[5] Congressman Gregorio Kilili Camacho Sablan. Kilili congratulates Michael San Nicolas, new Democratic Guam Delegate Archived December 11, 2020, at the Wayback Machine , November 6, 2018.

[results-6] 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 "Election Statistics, 1920 to Present | US House of Representatives: History, Art & Archives". History.house.gov. September 11, 2001. Retrieved January 21, 2020.

[marianasvariety-7] Taitano, Zita (November 8, 2012). "Guam Democrats to maintain majority in Legislature". Marianas Variety . Retrieved November 15, 2012.

[pdn-8] "ELECTION UPDATE: 58 of 58 precincts reporting". Pacific Daily News . November 7, 2012. Retrieved November 15, 2012.^{[ permanent dead link ]}

[Ballotpedia-9] "United States House of Representatives election in Guam, 2014". Ballotpedia.

[10] "GUAM OFFICIAL RESULTS GENERAL ELECTION NOVEMBER 8, 2016". Guam Election Commission.

[11] "GUAM OFFICIAL RESULTS GENERAL ELECTION NOVEMBER 6, 2018". Guam Election Commission.

[12] "Summary Results Report" (PDF). November 4, 2020.

[13] "Summary Runoff Results Report" (PDF). Retrieved January 6, 2023.

[14] "2022 General Election: Unofficial Results". Guam Election Commission.

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Guam's current delegation to the current United States Congress
senators	None (Territory of the USA)
Delegates (ordered by district)	James Moylan (R)

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Guam's at-large congressional district

Delegate	James Moylan R–Tumon
Area	210 sq mi (540 km²)
Population (2020)	153,836
Median household income	34,598
Ethnicity	56.4% other 28.6% Asian 6.9% White 2.2% Hispanic 0.1% Black 0.0% Native American