Jones County, Iowa | |
|---|---|
 TheJones County Courthouse in Anamosa | |
 Location within the U.S. state ofIowa | |
| Coordinates:42°07′12″N91°08′05″W / 42.12°N 91.134722222222°W /42.12; -91.134722222222 | |
| Country |  United States |
| State |  Iowa |
| Founded | December 21, 1837 |
| Named after | George Wallace Jones |
| Seat | Anamosa |
| Largest city | Anamosa |
| Area | |
• Total | 577 sq mi (1,490 km2) |
| • Land | 576 sq mi (1,490 km2) |
| • Water | 1.4 sq mi (3.6 km2) 0.2% |
| Population (2020) | |
• Total | 20,646 |
• Estimate (2024) | 21,116 |
| • Density | 35.8/sq mi (13.8/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 1st |
| Website | www |
| |
Jones County is acounty in theU.S. state ofIowa. As of the2020 census the population was 20,646.[2] Thecounty seat and the largest city isAnamosa.[3] The county was founded in 1837 and named afterGeorge Wallace Jones, aUnited States senator and member of Congress.[4][5]
Jones County is included in theCedar RapidsMetropolitan Statistical Area.[6]
According to theUnited States Census Bureau, the county has a total area of 577 square miles (1,490 km2), of which 576 square miles (1,490 km2) is land and 1.4 square miles (3.6 km2) (0.2%) is water.[7]
Monticello Regional Airport (MXO) serves the county and surrounding communities.
| Census | Pop. | Note | %± |
|---|---|---|---|
| 1850 | 3,007 | — | |
| 1860 | 13,306 | 342.5% | |
| 1870 | 19,731 | 48.3% | |
| 1880 | 21,052 | 6.7% | |
| 1890 | 20,233 | −3.9% | |
| 1900 | 21,954 | 8.5% | |
| 1910 | 19,050 | −13.2% | |
| 1920 | 18,607 | −2.3% | |
| 1930 | 19,206 | 3.2% | |
| 1940 | 19,950 | 3.9% | |
| 1950 | 19,401 | −2.8% | |
| 1960 | 20,693 | 6.7% | |
| 1970 | 19,868 | −4.0% | |
| 1980 | 20,401 | 2.7% | |
| 1990 | 19,444 | −4.7% | |
| 2000 | 20,221 | 4.0% | |
| 2010 | 20,638 | 2.1% | |
| 2020 | 20,646 | 0.0% | |
| 2024 (est.) | 21,116 | [9] | 2.3% |
| U.S. Decennial Census[10] 1790–1960[11] 1900–1990[12] 1990–2000[13] 2010–2020[14] | |||
As of the2020 census, the county had a population of 20,646 and a population density of35.9/sq mi (13.9/km2). The median age was 43.3 years, 21.3% of residents were under the age of 18, and 20.9% of residents were 65 years of age or older. For every 100 females there were 111.7 males, and for every 100 females age 18 and over there were 112.6 males age 18 and over.[15]
96.76% of the population reported being of one race. The racial makeup of the county was 93.2%White, 2.1%Black or African American, 0.3%American Indian and Alaska Native, 0.3%Asian, <0.1%Native Hawaiian andPacific Islander, 0.9% from some other race, and 3.2% fromtwo or more races.Hispanic or Latino residents of any race comprised 2.4% of the population.[16]
26.2% of residents lived in urban areas, while 73.8% lived in rural areas.[17]
There were 8,113 households in the county, of which 27.6% had children under the age of 18 living in them. Of all households, 53.6% were married-couple households, 18.2% were households with a male householder and no spouse or partner present, and 20.8% were households with a female householder and no spouse or partner present. About 28.2% of all households were made up of individuals and 13.8% had someone living alone who was 65 years of age or older.[15]
There were 8,871 housing units, of which 8,113 were occupied; 78.5% were owner-occupied and 21.5% were renter-occupied, with a homeowner vacancy rate of 1.7% and a rental vacancy rate of 10.1%.[15]
The2010 census recorded a population of 20,638 in the county, with a population density of35.9/sq mi (13.9/km2). There were 8,911 housing units, of which 8,151 were occupied.[18]
As of the2000 census, there were 20,221 people, 7,560 households, and 5,299 families residing in the county. The population density was 35 inhabitants per square mile (14/km2). There were 8,126 housing units at an average density of 14 per square mile (5.4/km2). The racial makeup of the county was 96.68%White, 1.79%Black orAfrican American, 0.32%Native American, 0.22%Asian, 0.23% fromother races, and 0.78% from two or more races. 1.05% of the population wereHispanic orLatino of any race.
There were 7,560 households, out of which 31.00% had children under the age of 18 living with them, 59.00% weremarried couples living together, 7.90% had a female householder with no husband present, and 29.90% were non-families. 25.30% of all households were made up of individuals, and 12.50% had someone living alone who was 65 years of age or older. The average household size was 2.47 and the average family size was 2.95.
In the county, the population was spread out, with 24.10% under the age of 18, 7.90% from 18 to 24, 29.00% from 25 to 44, 23.30% from 45 to 64, and 15.80% who were 65 years of age or older. The median age was 38 years. For every 100 females, there were 109.30 males. For every 100 females age 18 and over, there were 111.60 males.
The median income for a household in the county was $37,449, and the median income for a family was $44,269. Males had a median income of $31,039 versus $22,075 for females. Theper capita income for the county was $17,816. About 6.20% of families and 8.60% of the population were below thepoverty line, including 8.80% of those under age 18 and 10.20% of those age 65 or over.
The population ranking of the following table is based on the2020 census of Jones County.[2]
†county seat
| Rank | City/Town/etc. | Municipal type | Population (2020 Census) |
|---|---|---|---|
| 1 | †Anamosa | City | 5,450 |
| 2 | Monticello | City | 4,040 |
| 3 | Cascade (partially inDubuque County) | City | 2,386 |
| 4 | Olin | City | 651 |
| 5 | Wyoming | City | 523 |
| 6 | Oxford Junction | City | 424 |
| 7 | Martelle | City | 249 |
| 8 | Onslow | City | 201 |
| 9 | Stone City | CDP | 186 |
| 10 | Center Junction | CDP | 100 |
| 11 | Morley | City | 96 |
After voting for the Democratic nominee in its first two elections in 1848 and 1852 prior to the founding of the Republican Party, Jones County thereafter leaned Republican until 1988. It voted Democrat only four times between 1856 and 1984, in 1912 forWoodrow Wilson when he won with a plurality of the vote after former RepublicanTheodore Roosevelt ran as theProgressive candidate, leading to a fracture in the national Republican Party, then backingFranklin D. Roosevelt in his two landslide victories of 1932 and 1936, and then supportingLyndon B. Johnson during his 1964 landslide. From 1988 to 2012, Jones County favored the Democratic nominee in each election. In 2016,Donald Trump flipped the county back to the Republican column, capturing over 56% of the county's vote, the best Republican performance in the county since the 1972 landslide victory ofRichard Nixon. Trump increased his vote share to almost 60% in 2020 and increased his margin of victory to over 21%, the first election in the county decided by a margin of over 20% since 1964.
| Year | Republican | Democratic | Third party(ies) | |||
|---|---|---|---|---|---|---|
| No. | % | No. | % | No. | % | |
| 1896 | 3,057 | 57.84% | 2,143 | 40.55% | 85 | 1.61% |
| 1900 | 3,021 | 58.72% | 2,052 | 39.88% | 72 | 1.40% |
| 1904 | 2,833 | 59.17% | 1,834 | 38.30% | 121 | 2.53% |
| 1908 | 2,453 | 52.11% | 2,176 | 46.23% | 78 | 1.66% |
| 1912 | 1,622 | 35.52% | 2,189 | 47.93% | 756 | 16.55% |
| 1916 | 2,848 | 58.62% | 1,966 | 40.47% | 44 | 0.91% |
| 1920 | 5,962 | 70.46% | 2,436 | 28.79% | 63 | 0.74% |
| 1924 | 4,524 | 57.14% | 2,212 | 27.94% | 1,182 | 14.93% |
| 1928 | 5,090 | 62.83% | 2,976 | 36.74% | 35 | 0.43% |
| 1932 | 3,500 | 41.17% | 4,952 | 58.25% | 49 | 0.58% |
| 1936 | 4,141 | 44.26% | 5,052 | 54.00% | 163 | 1.74% |
| 1940 | 5,630 | 56.70% | 4,273 | 43.04% | 26 | 0.26% |
| 1944 | 4,453 | 55.44% | 3,563 | 44.36% | 16 | 0.20% |
| 1948 | 4,290 | 51.55% | 3,915 | 47.04% | 117 | 1.41% |
| 1952 | 6,070 | 66.90% | 2,991 | 32.97% | 12 | 0.13% |
| 1956 | 5,605 | 62.51% | 3,352 | 37.38% | 10 | 0.11% |
| 1960 | 5,541 | 58.52% | 3,924 | 41.44% | 4 | 0.04% |
| 1964 | 3,154 | 36.37% | 5,511 | 63.55% | 7 | 0.08% |
| 1968 | 4,513 | 53.65% | 3,415 | 40.60% | 484 | 5.75% |
| 1972 | 4,962 | 58.23% | 3,468 | 40.70% | 91 | 1.07% |
| 1976 | 4,463 | 50.54% | 4,245 | 48.07% | 123 | 1.39% |
| 1980 | 4,506 | 50.56% | 3,521 | 39.50% | 886 | 9.94% |
| 1984 | 4,907 | 55.82% | 3,825 | 43.51% | 59 | 0.67% |
| 1988 | 3,496 | 42.71% | 4,641 | 56.70% | 48 | 0.59% |
| 1992 | 3,071 | 34.51% | 3,508 | 39.42% | 2,321 | 26.08% |
| 1996 | 3,083 | 35.93% | 4,668 | 54.40% | 830 | 9.67% |
| 2000 | 4,201 | 45.95% | 4,690 | 51.30% | 252 | 2.76% |
| 2004 | 4,834 | 48.45% | 5,054 | 50.65% | 90 | 0.90% |
| 2008 | 4,405 | 44.01% | 5,446 | 54.42% | 157 | 1.57% |
| 2012 | 4,721 | 45.18% | 5,534 | 52.96% | 194 | 1.86% |
| 2016 | 5,720 | 56.45% | 3,787 | 37.37% | 626 | 6.18% |
| 2020 | 6,572 | 59.81% | 4,213 | 38.34% | 204 | 1.86% |
| 2024 | 6,820 | 62.11% | 3,942 | 35.90% | 218 | 1.99% |
Places adjacent to Jones County, Iowa | |
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Municipalities and communities ofJones County, Iowa,United States | ||
|---|---|---|
| Cities |  | |
| Townships | ||
| CDP | ||
| Other unincorporated communities | ||
| Footnotes | ‡This populated place also has portions in an adjacent county or counties | |
| International | |
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| National | |
| Other | |
42°07′12″N91°08′05″W / 42.12000°N 91.13472°W /42.12000; -91.13472
