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| Jefferson County, Montana | |
 Jefferson County Courthouse in Boulder
| |
 Location in the state of Montana | |
 Montana's location in the U.S. | |
| Founded | February 2, 1865[1] |
|---|---|
| Named for | Thomas Jefferson |
| Seat | Boulder |
| Largest town | Clancy |
| Area - Total - Land - Water |
1,659 sq mi (4,297 km²) 1,656 sq mi (4,289 km²) 2.6 sq mi (7 km²), 0.2 |
| Population - (2020) - Density |
12,085 |
| Congressional district | At-large |
| Time zone | Mountain: UTC-7/-6 |
| Website | http://www.jeffersoncounty-mt.gov/ |
| Footnotes: * Montana county number 51 | |
Jefferson County is a county in Montana, United States. As of the 2020 census, the population was 12,085.[2] Its county seat is Boulder.[3] The county was created in 1865[4] and named for President Thomas Jefferson.[5]
Jefferson County is part of the Helena, MT Micropolitan Statistical Area.
Geography[]
According to the United States Census Bureau, the county has a total area of 1,659 square miles (4,300 km2), of which 1,656 square miles (4,290 km2) is land and 2.6 square miles (6.7 km2) (0.2%) is water.[6]
Major highways[]
Interstate 15- Interstate 90
- U.S. Highway 12
- U.S. Highway 287
- Montana Highway 2
- Montana Highway 41
- Montana Highway 55
- Montana Highway 69
Adjacent counties[]
- Lewis and Clark County - north
- Broadwater County - east
- Gallatin County - southeast
- Madison County - south
- Silver Bow County - west
- Deer Lodge County - west
- Powell County - northwest
National protected areas[]
- Deerlodge National Forest (part)
- Helena National Forest (part)
Politics[]
| Year | Republican | Democratic | Third party | |||
|---|---|---|---|---|---|---|
| No. | % | No. | % | No. | % | |
| 2020 | 5,345 | 65.57% | 2,625 | 32.20% | 181 | 2.22% |
| 2016 | 4,177 | 62.21% | 1,998 | 29.76% | 539 | 8.03% |
| 2012 | 4,055 | 62.18% | 2,272 | 34.84% | 194 | 2.98% |
| 2008 | 3,538 | 55.80% | 2,582 | 40.72% | 221 | 3.49% |
| 2004 | 3,844 | 65.51% | 1,881 | 32.06% | 143 | 2.44% |
| 2000 | 3,308 | 64.07% | 1,513 | 29.30% | 342 | 6.62% |
| 1996 | 2,248 | 46.82% | 1,775 | 36.97% | 778 | 16.20% |
| 1992 | 1,541 | 36.47% | 1,415 | 33.49% | 1,269 | 30.04% |
| 1988 | 2,007 | 52.31% | 1,746 | 45.50% | 84 | 2.19% |
| 1984 | 2,226 | 61.53% | 1,324 | 36.59% | 68 | 1.88% |
| 1980 | 1,841 | 57.12% | 1,055 | 32.73% | 327 | 10.15% |
| 1976 | 1,387 | 52.26% | 1,210 | 45.59% | 57 | 2.15% |
| 1972 | 1,281 | 56.06% | 904 | 39.56% | 100 | 4.38% |
| 1968 | 798 | 45.06% | 820 | 46.30% | 153 | 8.64% |
| 1964 | 662 | 40.59% | 967 | 59.29% | 2 | 0.12% |
| 1960 | 817 | 51.38% | 769 | 48.36% | 4 | 0.25% |
| 1956 | 1,049 | 61.38% | 660 | 38.62% | 0 | 0.00% |
| 1952 | 1,084 | 60.76% | 687 | 38.51% | 13 | 0.73% |
| 1948 | 750 | 45.62% | 836 | 50.85% | 58 | 3.53% |
| 1944 | 797 | 49.72% | 803 | 50.09% | 3 | 0.19% |
| 1940 | 830 | 39.58% | 1,259 | 60.04% | 8 | 0.38% |
| 1936 | 573 | 27.78% | 1,409 | 68.30% | 81 | 3.93% |
| 1932 | 784 | 37.09% | 1,246 | 58.94% | 84 | 3.97% |
| 1928 | 1,013 | 56.97% | 751 | 42.24% | 14 | 0.79% |
| 1924 | 648 | 36.49% | 434 | 24.44% | 694 | 39.08% |
| 1920 | 969 | 54.47% | 688 | 38.67% | 122 | 6.86% |
| 1916 | 712 | 36.63% | 1,124 | 57.82% | 108 | 5.56% |
| 1912 | 239 | 20.03% | 479 | 40.15% | 475 | 39.82% |
| 1908 | 546 | 39.22% | 714 | 51.29% | 132 | 9.48% |
| 1904 | 663 | 45.54% | 580 | 39.84% | 213 | 14.63% |
| 1900 | 488 | 32.58% | 980 | 65.42% | 30 | 2.00% |
| 1896 | 153 | 6.54% | 2,185 | 93.42% | 1 | 0.04% |
| 1892 | 740 | 38.05% | 730 | 37.53% | 475 | 24.42% |
Demographics[]
| Historical populations | |||
|---|---|---|---|
| Census | Pop. | %± | |
| 1870 | 1,531 | ||
| 1880 | 2,464 | 60.9% | |
| 1890 | 6,026 | 144.6% | |
| 1900 | 5,330 | −11.5% | |
| 1910 | 5,601 | 5.1% | |
| 1920 | 5,203 | −7.1% | |
| 1930 | 4,133 | −20.6% | |
| 1940 | 4,664 | 12.8% | |
| 1950 | 4,014 | −13.9% | |
| 1960 | 4,297 | 7.1% | |
| 1970 | 5,238 | 21.9% | |
| 1980 | 7,029 | 34.2% | |
| 1990 | 7,939 | 12.9% | |
| 2000 | 10,049 | 26.6% | |
| 2010 | 11,406 | 13.5% | |
| Est. 2021 | 12,470 | [8] | 24.1% |
| U.S. Decennial Census[9] 1790-1960[10] 1900-1990[11] 1990-2000[12] 2010-2020[2] | |||
2000 census[]
As of the 2000 United States census,[13] there were 10,049 people, 3,747 households, and 2,847 families in the county. The population density was 6 people per square mile (2/km2). There were 4,199 housing units at an average density of 2 per square mile (1/km2). The racial makeup of the county was 96.07% White, 0.14% Black or African American, 1.26% Native American, 0.42% Asian, 0.07% Pacific Islander, 0.38% from other races, and 1.66% from two or more races. 1.48% of the population were Hispanic or Latino of any race. 22.9% were of German, 13.1% English, 12.9% Irish, 7.9% Norwegian and 5.3% American ancestry.
There were 3,747 households, out of which 35.60% had children under the age of 18 living with them, 67.10% were married couples living together, 5.90% had a female householder with no husband present, and 24.00% were non-families. 20.20% of all households were made up of individuals, and 7.30% had someone living alone who was 65 years of age or older. The average household size was 2.62 and the average family size was 3.03.
The county population contained 27.80% under the age of 18, 5.20% from 18 to 24, 26.80% from 25 to 44, 29.90% from 45 to 64, and 10.30% who were 65 years of age or older. The median age was 40 years. For every 100 females, there were 100.80 males. For every 100 females age 18 and over, there were 100.40 males.
The median income for a household in the county was $41,506, and the median income for a family was $48,912. Males had a median income of $34,753 versus $25,011 for females. The per capita income for the county was $18,250. About 6.70% of families and 9.00% of the population were below the poverty line, including 10.40% of those under age 18 and 9.60% of those age 65 or over.
2010 census[]
As of the 2010 United States census, there were 11,406 people, 4,512 households, and 3,301 families residing in the county.[14] The population density was 6.9 inhabitants per square mile (2.7 /km2). There were 5,055 housing units at an average density of 3.1 per square mile (1.2 /km2).[15] The racial makeup of the county was 95.5% white, 1.4% American Indian, 0.4% Asian, 0.1% black or African American, 0.4% from other races, and 2.2% from two or more races. Those of Hispanic or Latino origin made up 2.0% of the population.[14] In terms of ancestry, 31.3% were German, 19.1% were Irish, 17.2% were English, 10.8% were Norwegian, and 4.2% were American.[16]
Of the 4,512 households, 28.8% had children under the age of 18 living with them, 63.7% were married couples living together, 5.4% had a female householder with no husband present, 26.8% were non-families, and 22.6% of all households were made up of individuals. The average household size was 2.48 and the average family size was 2.90. The median age was 46.2 years.[14]
The median income for a household in the county was $56,695 and the median income for a family was $67,195. Males had a median income of $50,978 versus $34,148 for females. The per capita income for the county was $26,437. About 2.7% of families and 12.8% of the population were below the poverty line, including 5.1% of those under age 18 and 8.6% of those age 65 or over.[17]
Communities[]
Towns[]
- Boulder (county seat)
- Whitehall
Census-designated places[]
- Basin
- Cardwell
- Clancy (includes Alhambra)
- Elkhorn
- Jefferson City
- Montana City
- Rader Creek
- South Hills
Unincorporated communities[]
Former communities[]
- Comet
- Wickes
See also[]
- List of counties in Montana
- List of lakes in Jefferson County, Montana
- List of mountains in Jefferson County, Montana
- National Register of Historic Places listings in Jefferson County, Montana
References[]
- ^ "Montana County Formation Table". http://genealogytrails.com/mon/countytimeline.html.
- ^ a b "State & County QuickFacts". U.S. Census Bureau. https://www.census.gov/quickfacts/fact/table/jeffersoncountymontana/PST045221.
- ^ "Find a County". National Association of Counties. http://www.naco.org/Counties/Pages/FindACounty.aspx.
- ^ "Montana Place Names Companion". Montana Place Names From Alzada to Zortman. Montana Historical Society Research Center. http://mtplacenames.org/.
- ^ Gannett, Henry (1905). The Origin of Certain Place Names in the United States. Govt. Print. Off.. p. 168. https://archive.org/details/bub_gb_9V1IAAAAMAAJ.
- ^ "2010 Census Gazetteer Files". US Census Bureau. August 22, 2012. https://www.census.gov/geo/maps-data/data/docs/gazetteer/counties_list_30.txt.
- ^ Leip, David. "Atlas of US Presidential Elections". http://uselectionatlas.org/RESULTS.
- ^ "Annual Estimates of the Resident Population for Counties: April 1, 2020 to July 1, 2021". https://www.census.gov/data/tables/time-series/demo/popest/2020s-counties-total.html.
- ^ "U.S. Decennial Census". U.S. Census Bureau. https://www.census.gov/programs-surveys/decennial-census.html.
- ^ "Historical Census Browser". University of Virginia Library. http://mapserver.lib.virginia.edu.
- ^ "Population of Counties by Decennial Census: 1900 to 1990". U.S. Census Bureau. https://www.census.gov/population/cencounts/mt190090.txt.
- ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000". U.S. Census Bureau. https://www.census.gov/population/www/cen2000/briefs/phc-t4/tables/tab02.pdf.
- ^ "U.S. Census website". U.S. Census Bureau. https://www.census.gov.
- ^ a b c "Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". US Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/0500000US30043.
- ^ "Population, Housing Units, Area, and Density: 2010 - County". U.S. Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_SF1/GCTPH1.CY07/0500000US30043.
- ^ "Selected Social Characteristics in the US – 2006-2010 American Community Survey 5-Year Estimates". US Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP02/0500000US30043.
- ^ "Selected Economic Characteristics – 2006-2010 American Community Survey 5-Year Estimates". US Census Bureau. http://factfinder.census.gov/bkmk/table/1.0/en/ACS/10_5YR/DP03/0500000US30043.
- ^ Amazon, Jefferson County MT Google Maps (accessed January 2, 2019)
- ^ Bernice, Jefferson County MT Google Maps (accessed January 2, 2019)
- ^ Elk Park, Jefferson County MT Google Maps (accessed January 2, 2019)
- ^ Homestake, Jefferson County MT Google Maps (accessed January 2, 2019)
- ^ Leadville, Jefferson County MT Google Maps (accessed January 2, 2019)
- ^ La Hood Park, Jefferson County MT Google Maps (accessed January 2, 2019)
- ^ Louisville, Jefferson County MT Google Maps (accessed January 2, 2019)
- ^ Pappas Place, Jefferson County MT Google Maps (accessed January 2, 2019)
- ^ Paul Place, Jefferson County MT Google Maps (accessed January 2, 2019)
- ^ Piedmont, Jefferson County MT Google Maps (accessed January 2, 2019)
- ^ Pipestone, Jefferson County MT Google Maps (accessed January 2, 2019)
- ^ Renova, Jefferson County MT Google Maps (accessed January 2, 2019)
External links[]
|
Powell County | Lewis and Clark County |
| |
| Silver Bow County and Deer Lodge County | 
|
Broadwater County | ||
   Jefferson County, Montana | ||||
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| Madison County | Gallatin County |
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| This page uses content from the English language Wikipedia. The original content was at Jefferson County, Montana. The list of authors can be seen in the page history. As with this Familypedia wiki, the content of Wikipedia is available under the Creative Commons License. |