Boone County, Iowa | |
|---|---|
 Boone County Courthouse | |
 Seal | |
 Location within the U.S. state ofIowa | |
| Coordinates:42°02′11″N93°55′56″W / 42.036388888889°N 93.932222222222°W /42.036388888889; -93.932222222222 | |
| Country |  United States |
| State |  Iowa |
| Founded | January 13, 1846 |
| Seat | Boone |
| Largest city | Boone |
| Area | |
• Total | 574 sq mi (1,490 km2) |
| • Land | 572 sq mi (1,480 km2) |
| • Water | 2.1 sq mi (5.4 km2) 0.4% |
| Population (2020) | |
• Total | 26,715 |
• Estimate (2024) | 26,729 |
| • Density | 46.7/sq mi (18.0/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 4th |
| Website | www |
| |
Boone County is acounty in theU.S. state ofIowa. As of the2020 census, the population was 26,715.[2] Itscounty seat isBoone.[3] Boone County comprises the Boone, IAMicropolitan Statistical Area, which is included in theDes Moines-Ames-West Des Moines, IACombined Statistical Area.
The land that now forms Boone and several other Iowa counties was ceded by the Sac and Fox nation to the United States in atreaty signed on October 11, 1842.
On January 13, 1846, the legislative body of theIndiana Territory authorized creation of twelve counties in the Iowa Territory,[4] with general descriptions of their boundaries.[5] Boone County's name referred to CaptainNathan Boone,[6] son ofDaniel Boone, an American pioneer who formed theWilderness Trail and founded the settlement ofBoonesborough, Kentucky.
County residents selected Boonesboro as the county seat in 1851. The first building erected in the new settlement was a double log house, to be used as interim county office and courthouse. It was supplemented by a two–story building erected in 1856, then replaced by a three-story building in 1868.
The nearby settlement of Montana was incorporated in 1866, when a railway station was built there.[7] It was renamed to Boone in 1871.[8] It continued to grow, and it annexed the settlement of Boonesboro (which had also been incorporated in 1866) in 1887, thus becoming the county seat.[8]
After the second courthouse became too small for the county's expanding populace, a new building (thepresent courthouse) replaced it. It was completed in 1917.[9]
According to theU.S. Census Bureau, the county has a total area of 574 square miles (1,490 km2), of which 572 square miles (1,480 km2) is land and 2.1 square miles (5.4 km2) (0.4%) is water.[10]
U.S. Highway 30 – runs east–west through center of county. Passes Beaver, Ogden, and Jordan.
U.S. Highway 169 – runs south fromWebster County through the west-central portion of Boone County. At its intersection with US 30, U.S. 169 runs east three miles toOgden, then runs south toDallas County.
Iowa Highway 17 – runs south through eastern Boone County to Jordan, west one mile, then south to the boundary line between Dallas andPolk counties.
Iowa Highway 144 – runs across the southwest tip of the county from northwest to southeast.
Iowa Highway 210 – enters south line of county atWoodward, then runs east and east-northeast across the southern portion of county toStory County.[11]| Census | Pop. | Note | %± |
|---|---|---|---|
| 1850 | 735 | — | |
| 1860 | 4,232 | 475.8% | |
| 1870 | 14,584 | 244.6% | |
| 1880 | 20,838 | 42.9% | |
| 1890 | 23,772 | 14.1% | |
| 1900 | 28,200 | 18.6% | |
| 1910 | 27,626 | −2.0% | |
| 1920 | 29,892 | 8.2% | |
| 1930 | 29,271 | −2.1% | |
| 1940 | 29,782 | 1.7% | |
| 1950 | 28,139 | −5.5% | |
| 1960 | 28,037 | −0.4% | |
| 1970 | 26,470 | −5.6% | |
| 1980 | 26,184 | −1.1% | |
| 1990 | 25,186 | −3.8% | |
| 2000 | 26,224 | 4.1% | |
| 2010 | 26,306 | 0.3% | |
| 2020 | 26,715 | 1.6% | |
| 2024 (est.) | 26,729 | [12] | 0.1% |
| U.S. Decennial Census[13] 1790-1960[14] 1900-1990[15] 1990-2000[16] 2010-2018[17] | |||
As of the2020 census, the county had a population of 26,715 and a population density of46.4/sq mi (17.9/km2). The median age was 41.8 years; 23.1% of residents were under the age of 18 and 20.1% of residents were 65 years of age or older. For every 100 females there were 100.6 males, and for every 100 females age 18 and over there were 97.4 males age 18 and over.[18][19]
46.8% of residents lived in urban areas, while 53.2% lived in rural areas.[20]
The racial makeup of the county was 93.4%White, 1.1%Black or African American, 0.2%American Indian and Alaska Native, 0.4%Asian, <0.1%Native Hawaiian andPacific Islander, 0.9% from some other race, and 3.9% fromtwo or more races.Hispanic or Latino residents of any race comprised 2.7% of the population.[18]
There were 10,981 households in the county, of which 28.5% had children under the age of 18 living in them. Of all households, 52.8% were married-couple households, 18.2% were households with a male householder and no spouse or partner present, and 22.3% were households with a female householder and no spouse or partner present. About 28.7% of all households were made up of individuals and 12.8% had someone living alone who was 65 years of age or older.[19]
There were 11,921 housing units, of which 7.9% were vacant. Among occupied housing units, 77.7% were owner-occupied and 22.3% were renter-occupied. The homeowner vacancy rate was 1.8% and the rental vacancy rate was 9.9%.[19]
The 2010 census recorded a population of 26,306 in the county, with a population density of46.1/sq mi (17.8/km2). There were 11,756 housing units, of which 10,728 were occupied.[21]
As of thecensus[22] of 2000, there were 26,224 people, 10,374 households, and 7,137 families residing in the county. Thepopulation density was 46 people per square mile (18 people/km2). There were 10,968 housing units at an average density of 19 units per square mile (7.3 units/km2). The racial makeup of the county was 98.53%White, 0.36%Black orAfrican American, 0.20%Native American, 0.22%Asian, 0.26% fromother races, and 0.43% from two or more races. 0.83% of the population wereHispanic orLatino of any race.
There were 10,374 households, out of which 31.20% had children under the age of 18 living with them, 58.00% weremarried couples living together, 7.80% had a female householder with no husband present, and 31.20% were non-families. 26.70% of all households were made up of individuals, and 11.80% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 2.95.
In the county, the population was spread out, with 24.80% under the age of 18, 8.40% from 18 to 24, 27.10% from 25 to 44, 23.30% from 45 to 64, and 16.40% who were 65 years of age or older. The median age was 39 years. For every 100 females there were 95.90 males. For every 100 females age 18 and over, there were 91.70 males.
The median income for a household in the county was $40,763, and the median income for a family was $49,346. Males had a median income of $32,504 versus $23,838 for females. Theper capita income for the county was $19,943. About 4.50% of families and 7.60% of the population were below thepoverty line, including 8.00% of those under age 18 and 5.90% of those age 65 or over.
The population ranking of the following table is based on the2020 census of Boone County.[2]†county seat
| Rank | City/Town/etc. | Municipal type | Population (2020 Census) |
|---|---|---|---|
| 1 | †Boone | City | 12,460 |
| 2 | Madrid | City | 2,802 |
| 3 | Ogden | City | 2,007 |
| 4 | Boxholm | City | 181 |
| 5 | Pilot Mound | City | 163 |
| 6 | Luther | City | 152 |
| 7 | Fraser | City | 101 |
| 8 | Beaver | City | 46 |
| 9 | Berkley | City | 23 |
| 10 | Sheldahl (partially inPolk andStory Counties) | City | 19 (297 total) |
Prior to 1932, Boone County was primarily Republican in presidential elections, aside from 1912 when the county backed Bull Moose candidate & former Republican PresidentTheodore Roosevelt. From 1932 to 1980, the county was a swing county, voting for the national winner in all elections in that period aside from 1960. From 1984 to 2012, the county was consistently Democratic in presidential elections, but swung hard in 2016 by 20.7 points to back RepublicanDonald Trump similar to many other counties in Iowa.[23] In Republican presidential primaries, it holds the distinction of having the longest streak of voting against the future nominee, having done so since the 1980 primary.
| Year | Republican | Democratic | Third party(ies) | |||
|---|---|---|---|---|---|---|
| No. | % | No. | % | No. | % | |
| 1896 | 3,741 | 56.43% | 2,801 | 42.25% | 88 | 1.33% |
| 1900 | 4,151 | 61.58% | 2,264 | 33.59% | 326 | 4.84% |
| 1904 | 3,830 | 65.66% | 1,148 | 19.68% | 855 | 14.66% |
| 1908 | 3,368 | 57.71% | 1,958 | 33.55% | 510 | 8.74% |
| 1912 | 802 | 13.64% | 1,601 | 27.23% | 3,477 | 59.13% |
| 1916 | 2,955 | 52.41% | 2,338 | 41.47% | 345 | 6.12% |
| 1920 | 7,093 | 71.07% | 2,240 | 22.44% | 647 | 6.48% |
| 1924 | 4,980 | 45.57% | 702 | 6.42% | 5,246 | 48.01% |
| 1928 | 7,521 | 70.01% | 3,049 | 28.38% | 172 | 1.60% |
| 1932 | 3,694 | 38.00% | 5,293 | 54.44% | 735 | 7.56% |
| 1936 | 4,110 | 35.34% | 7,080 | 60.88% | 439 | 3.78% |
| 1940 | 5,227 | 41.92% | 7,168 | 57.49% | 74 | 0.59% |
| 1944 | 4,868 | 44.24% | 6,062 | 55.09% | 73 | 0.66% |
| 1948 | 4,183 | 40.92% | 5,541 | 54.21% | 498 | 4.87% |
| 1952 | 7,901 | 61.03% | 4,896 | 37.82% | 150 | 1.16% |
| 1956 | 6,740 | 53.65% | 5,815 | 46.28% | 9 | 0.07% |
| 1960 | 6,761 | 53.97% | 5,759 | 45.97% | 7 | 0.06% |
| 1964 | 3,543 | 31.26% | 7,699 | 67.92% | 93 | 0.82% |
| 1968 | 5,260 | 47.40% | 5,219 | 47.03% | 617 | 5.56% |
| 1972 | 6,271 | 54.29% | 5,057 | 43.78% | 223 | 1.93% |
| 1976 | 5,413 | 44.14% | 6,595 | 53.78% | 255 | 2.08% |
| 1980 | 5,732 | 47.42% | 5,126 | 42.41% | 1,229 | 10.17% |
| 1984 | 5,746 | 46.80% | 6,485 | 52.82% | 46 | 0.37% |
| 1988 | 4,381 | 37.49% | 7,232 | 61.89% | 73 | 0.62% |
| 1992 | 4,148 | 33.95% | 5,913 | 48.39% | 2,158 | 17.66% |
| 1996 | 4,293 | 36.27% | 6,446 | 54.47% | 1,096 | 9.26% |
| 2000 | 5,625 | 45.92% | 6,270 | 51.19% | 354 | 2.89% |
| 2004 | 6,870 | 49.04% | 7,027 | 50.16% | 112 | 0.80% |
| 2008 | 6,293 | 45.17% | 7,356 | 52.80% | 282 | 2.02% |
| 2012 | 6,556 | 45.57% | 7,512 | 52.21% | 320 | 2.22% |
| 2016 | 7,484 | 52.72% | 5,541 | 39.03% | 1,171 | 8.25% |
| 2020 | 8,695 | 56.68% | 6,303 | 41.09% | 342 | 2.23% |
| 2024 | 9,199 | 59.72% | 5,895 | 38.27% | 309 | 2.01% |
School districts include:[26]
On July 1, 2023,Southeast Webster-Grand Community School District merged into theSoutheast Valley Community School District.[27]
Sheabilloff was invoked but never defined (see thehelp page).Places adjacent to Boone County, Iowa | |
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Municipalities and communities ofBoone County, Iowa,United States | ||
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| Cities |  | |
| Townships | ||
| Unincorporated communities | ||
| Ghost town | ||
| Footnotes | ‡This populated place also has portions in an adjacent county or counties | |
| International | |
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| National | |
| Other | |
42°02′11″N93°55′56″W / 42.03639°N 93.93222°W /42.03639; -93.93222
