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Gem County, Idaho

Coordinates: 44°04′N 116°25′W / 44.06°N 116.41°W / 44.06; -116.41
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Gem County
County
Gem County Courthouse
Gem County Courthouse
Official seal of Gem County
Seal
Map of Idaho highlighting Gem County
Location within the U.S. state of Idaho
Map of the United States highlighting Idaho
Idaho's location within the U.S.
Coordinates: 44°04′N 116°25′W / 44.06°N 116.41°W / 44.06; -116.41
Country United States
State Idaho
FoundedMarch 15, 1915
Named forthe state nickname, "Gem State".
SeatEmmett
Largest cityEmmett
Area
 • Total
566 sq mi (1,470 km2)
 • Land561 sq mi (1,450 km2)
 • Water4.8 sq mi (12 km2)  0.8%
Population
 (2020)
 • Total
19,123
 • Density34/sq mi (13/km2)
Time zoneUTC−7 (Mountain)
 • Summer (DST)UTC−6 (MDT)
Congressional district1st
Websitewww.co.gem.id.us

Gem County is a county in the U.S. state of Idaho. As of the 2020 census, the population was 19,123.[1] The county seat and largest city is Emmett.[2]

Gem County is part of the Boise, ID Metropolitan Statistical Area.

Gem County is home to the Idaho ground squirrel.

History

[edit]

Named for the state nickname, "Gem State," the county was established on March 15, 1915, partitioned from Canyon County and Boise County.[3] Fur trappers were in the area as early as 1818, and Alexander Ross explored Squaw Creek in 1824. Prospectors and miners moved through the county in 1862 en route to the gold rush in the Boise Basin around Idaho City, and by the next year irrigation began along the Payette River.[4] Under Washington Territory, the area was part of Idaho County from the time of settlement until the territory south of the Payette River became part of Boise County at its creation in 1863. Picket's Corral, northeast of Emmett was the base of operations for a gang of horse thieves and "bogus dust peddlers" between 1862 and 1864.[3] The Payette Vigilance Committee eliminated the gang, bringing safety for citizens of the area. The act creating Ada County in 1864 established the Ada County boundary common to Boise County as a line from Grimes Creek to Picket's Corral and then north from that point to the existing northern boundary of Boise County, leaving the areas outside of Emmett within Boise County.[5][6] Jonathan Smith and Nathaniel Martin settled near Emmett about 1862. They established a ferry on the Payette River at Emmett in 1866. On May 31, 1867, a post office was established at the ferry and named Martinsville, which was renamed Emmettsville on October 31, 1868; postal officials shortened the name of the post office to Emmett in 1885.[7][8]

Census data for the area shows Squaw Creek Precinct under Boise County with a population of 30 in 1870.[9] Ada County did not separately return precincts at that census. By 1890, Squaw Creek was split into two precincts. Those precincts were grouped with Horseshoe Bend at the 1890 census. The Emmett precinct contained 479 residents at that time.[10] The Emmett area was transferred to Canyon County at its establishment in 1892.[11] At the 1910 Census, three Emmett area precincts contained a population of 2,601 while three Boise County precincts of Upper Squaw Creek, Lower Squaw Creek, and Pearl contained 1,069 residents.[12]

The Black Canyon Diversion Dam on the river was built in the early 1920s, east of Emmett.[13] Based on a German television broadcast, there was even in the 1990s a high level of Radioactivity because of the Atomic Tests in Nevada.

Geography

[edit]

According to the U.S. Census Bureau, the county has a total area of 566 square miles (1,470 km2), of which 561 square miles (1,450 km2) is land and 4.8 square miles (12 km2) (0.8%) is water.[14] It is the fifth-smallest county in Idaho by area.

Adjacent counties

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National protected area

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Demographics

[edit]
Historical population
CensusPop.Note%±
19206,427—
19307,41915.4%
19409,54428.6%
19508,730−8.5%
19609,1274.5%
19709,3872.8%
198011,97227.5%
199011,844−1.1%
200015,18128.2%
201016,71910.1%
202019,12314.4%
2023 (est.)21,071[15]10.2%
U.S. Decennial Census[16]
1790–1960,[17] 1900–1990,[18]
1990–2000,[19] 2010,[20] 2020[1]

2000 census

[edit]

As of the census[21] of 2000, there were 15,181 people, 5,539 households, and 4,176 families living in the county. The population density was 27 inhabitants per square mile (10/km2). There were 5,888 housing units at an average density of 10 per square mile (3.9/km2). The racial makeup of the county was 93.79% White, 0.73% Native American, 0.36% Asian, 0.07% Black or African American, 0.06% Pacific Islander, 3.16% from other races, and 1.83% from two or more races. 6.92% of the population were Hispanic or Latino of any race. 18.9% were of American, 17.5% German, 13.1% English and 7.2% Irish ancestry.

There were 5,539 households, out of which 34.00% had children under the age of 18 living with them, 63.40% were married couples living together, 8.40% had a female householder with no husband present, and 24.60% were non-families. 20.80% of all households were made up of individuals, and 9.90% had someone living alone who was 65 years of age or older. The average household size was 2.70 and the average family size was 3.12.

In the county, the population was spread out, with 28.00% under the age of 18, 7.60% from 18 to 24, 25.30% from 25 to 44, 23.50% from 45 to 64, and 15.60% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 98.70 males. For every 100 females age 18 and over, there were 96.70 males.

The median income for a household in the county was $34,460, and the median income for a family was $40,195. Males had a median income of $31,036 versus $20,755 for females. The per capita income for the county was $15,340. About 11.60% of families and 13.10% of the population were below the poverty line, including 15.60% of those under age 18 and 13.90% of those age 65 or over.

2010 census

[edit]

As of the 2010 United States Census, there were 16,719 people, 6,495 households, and 4,611 families living in the county.[22] The population density was 29.8 inhabitants per square mile (11.5/km2). There were 7,099 housing units at an average density of 12.7 per square mile (4.9/km2).[23] The racial makeup of the county was 93.4% white, 0.6% American Indian, 0.5% Asian, 0.1% Pacific islander, 0.1% black or African American, 3.1% from other races, and 2.2% from two or more races. Those of Hispanic or Latino origin made up 8.0% of the population.[22] In terms of ancestry, 23.2% were German, 19.2% were English, 15.8% were American, and 12.3% were Irish.[24]

Of the 6,495 households, 30.6% had children under the age of 18 living with them, 56.9% were married couples living together, 9.3% had a female householder with no husband present, 29.0% were non-families, and 24.3% of all households were made up of individuals. The average household size was 2.55 and the average family size was 3.01. The median age was 42.9 years.[22]

The median income for a household in the county was $42,794 and the median income for a family was $49,976. Males had a median income of $39,482 versus $31,083 for females. The per capita income for the county was $20,431. About 9.7% of families and 14.7% of the population were below the poverty line, including 17.3% of those under age 18 and 9.3% of those age 65 or over.[25]

2016

[edit]

As of 2016 the largest self-reported ancestries/ethnicities in Gem County, Idaho were:

Largest ancestries (2016) Percent
English England 19.3%
German Germany 17.9%
Irish Republic of Ireland 11.9%
"American" United States 8.8%
Italian Italy 3.3%
Scottish Scotland 2.4%
Dutch Netherlands 1.1%
French France 2.0%
Swedish Sweden 1.7%
Norwegian Norway 1.1%
Swiss Switzerland 0.9%
Welsh Wales 0.8%

[26]

2020 census

[edit]

Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos can be of any race.

Gem County racial composition[27][28]
(NH = Non-Hispanic)
Race Pop 2010 Pop 2020 % 2010 % 2020
White (NH) 14,898 16,132 89.11% 84.36%
Black or African American (NH) 20 29 0.12% 0.15%
Native American or Alaska Native (NH) 77 124 0.46% 0.65%
Asian (NH) 78 99 0.47% 0.52%
Pacific Islander (NH) 10 20 0.06% 0.1%
Some Other Race (NH) 13 96 0.08% 0.5%
Mixed/Multi-Racial (NH) 287 901 1.72% 4.71%
Hispanic or Latino 1,336 1,722 7.99% 9.0%
Total 16,719 19,123

As of the 2020 United States census, there were 19,123 people, 6,683 households, and 4,585 families residing in the county.

Communities

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City

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Census-designated place

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Unincorporated communities

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Politics

[edit]

Gem County is almost always Republican. The last time a Democratic presidential candidate carried the county was in 1964 by Lyndon B. Johnson.

United States presidential election results for Gem County, Idaho[29]
Year Republican Democratic Third party(ies)
No.  % No.  % No.  %
2020 7,951 79.65% 1,803 18.06% 229 2.29%
2016 5,980 75.18% 1,229 15.45% 745 9.37%
2012 5,311 70.90% 1,957 26.12% 223 2.98%
2008 5,585 70.27% 2,166 27.25% 197 2.48%
2004 5,416 75.92% 1,628 22.82% 90 1.26%
2000 4,376 73.14% 1,346 22.50% 261 4.36%
1996 3,362 53.96% 1,968 31.58% 901 14.46%
1992 2,455 42.90% 1,609 28.11% 1,659 28.99%
1988 2,926 56.90% 2,064 40.14% 152 2.96%
1984 3,644 68.11% 1,607 30.04% 99 1.85%
1980 3,766 65.77% 1,613 28.17% 347 6.06%
1976 2,401 52.75% 1,978 43.45% 173 3.80%
1972 2,717 61.32% 1,069 24.13% 645 14.56%
1968 2,314 57.89% 1,183 29.60% 500 12.51%
1964 1,979 45.95% 2,328 54.05% 0 0.00%
1960 2,428 55.13% 1,976 44.87% 0 0.00%
1956 2,445 58.75% 1,717 41.25% 0 0.00%
1952 2,568 62.21% 1,555 37.67% 5 0.12%
1948 1,585 46.26% 1,724 50.32% 117 3.42%
1944 1,363 41.75% 1,866 57.15% 36 1.10%
1940 1,462 35.38% 2,666 64.52% 4 0.10%
1936 879 24.64% 2,468 69.17% 221 6.19%
1932 898 27.54% 2,007 61.55% 356 10.92%
1928 1,656 71.01% 646 27.70% 30 1.29%
1924 1,072 41.31% 380 14.64% 1,143 44.05%
1920 1,404 62.73% 832 37.18% 2 0.09%
1916 750 39.47% 990 52.11% 160 8.42%

Education

[edit]

There is a single K-12 school district in the county: Emmett Independent School District 221.[30]

Residents are in the area (but not the taxation zone) for College of Western Idaho.[31]

Healthcare

[edit]

The county is served by the Southwest Idaho Health District.[32]

See also

[edit]

References

[edit]
  1. ^ a b "Gem County, Idaho". United States Census Bureau. Retrieved June 25, 2023.
  2. ^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
  3. ^ a b Curtis, Lola (March 8, 1962). "Vigilantes once held Gem County". Lewiston Morning Tribune. (Idaho). p. 8.
  4. ^ Idaho.gov - Gem County Archived November 26, 2005, at the Wayback Machine - accessed December 10, 2011
  5. ^ "Idaho State Historical Society Reference Series: PICKET'S CORRAL" (PDF). Idaho State Historical Society. Archived (PDF) from the original on May 2, 2012. Retrieved February 17, 2017.
  6. ^ Laws of the Territory of Idaho, Second Session. Boise City: Frank Kenyon, Territorial Printer. 1866. p. 430. Retrieved February 17, 2017.
  7. ^ "Gem County Post Offices and Postmasters". Gem County Historical Society and Village Museum. Retrieved February 17, 2017.
  8. ^ "What's in a Name?". Gem County Historical Society and Village Museum. Retrieved February 17, 2017.
  9. ^ Ninth Census—Volume I (PDF). Government Printing Office. 1872. p. 107. Archived (PDF) from the original on November 8, 2005. Retrieved February 17, 2017.
  10. ^ Report on the Population of the United States at the Eleventh Census: 1890. Washington: Government Printing Office. 1895. p. 99.
  11. ^ Idaho Atlas of Historical County Boundaries. Chicago: The Newberry Library. 2010. pp. 2, 42, 45, 66, 95–96.
  12. ^ Twelfth Census of the United States Taken in the Year 1910 (PDF). Washington: Government Printing Office. 1913. pp. 414–415. Archived (PDF) from the original on May 25, 2006. Retrieved February 17, 2017.
  13. ^ USBR - Black Canyon div. dam Archived June 7, 2009, at the Wayback Machine
  14. ^ "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. February 12, 2011. Retrieved April 23, 2011.
  15. ^ "Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2023". United States Census Bureau. Retrieved March 31, 2024.
  16. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved June 30, 2014.
  17. ^ "Historical Census Browser". University of Virginia Library. Retrieved June 30, 2014.
  18. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved June 30, 2014.
  19. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Archived (PDF) from the original on March 27, 2010. Retrieved June 30, 2014.
  20. ^ "State & County QuickFacts". United States Census Bureau. Archived from the original on May 26, 2012. Retrieved June 30, 2014.
  21. ^ "U.S. Census website". United States Census Bureau. Retrieved January 31, 2008.
  22. ^ a b c "DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved January 9, 2016.
  23. ^ "Population, Housing Units, Area, and Density: 2010 - County". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved January 9, 2016.
  24. ^ "DP02 SELECTED SOCIAL CHARACTERISTICS IN THE UNITED STATES – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved January 9, 2016.
  25. ^ "DP03 SELECTED ECONOMIC CHARACTERISTICS – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved January 9, 2016.
  26. ^ Bureau, U.S. Census. "American FactFinder - Results". Factfinder.census.gov. Archived from the original on February 13, 2020. Retrieved January 2, 2018. {{cite web}}: |last= has generic name (help)
  27. ^ "Explore Census Data". data.census.gov. Retrieved March 15, 2022.
  28. ^ "Explore Census Data". data.census.gov. Retrieved March 15, 2022.
  29. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". Uselectionatlas.org. Retrieved January 2, 2018.
  30. ^ "2020 CENSUS - SCHOOL DISTRICT REFERENCE MAP: Gem County, ID" (PDF). U.S. Census Bureau. Retrieved March 12, 2024. - Text list
  31. ^ "College of Western Idaho, pg. 1-77" (PDF). Idaho Legislature. January 26, 2022. Retrieved March 12, 2024. - See the map. Also see area 3 in: "TITLE 33 EDUCATION CHAPTER 21 JUNIOR COLLEGES". Idaho Legislature. Retrieved March 12, 2024.
  32. ^ Luchetta, Julie; Oppie, Troy (October 23, 2024). "Southwest Idaho Health District Board pulls COVID vaccines from its clinics". Boise State Public Radio. Retrieved October 27, 2024.
[edit]

44°04′N 116°25′W / 44.06°N 116.41°W / 44.06; -116.41

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