Delaware County, Iowa facts for kids
Quick facts for kids
Delaware County
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Location within the U.S. state of Iowa
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 Iowa's location within the U.S. |
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| Country |  United States |
| State |  Iowa |
| Founded | 1837 |
| Named for | State of Delaware |
| Seat | Manchester |
| Largest city | Manchester |
| Area | |
| • Total | 579 sq mi (1,500 km2) |
| • Land | 578 sq mi (1,500 km2) |
| • Water | 1.2 sq mi (3 km2) 0.2% |
| Population
(2020)
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| • Total | 17,488 |
| • Density | 30.204/sq mi (11.662/km2) |
| Time zone | UTC−6 (Central) |
| • Summer (DST) | UTC−5 (CDT) |
| Congressional district | 2nd |
Delaware County is a county located in the U.S. state of Iowa. As of the 2020 census, the population was 17,488. The county seat is Manchester. The county takes its name after the U.S. state of Delaware.
Contents
Geography
According to the U.S. Census Bureau, the county has a total area of 579 square miles (1,500 km2), of which 578 square miles (1,500 km2) is land and 1.2 square miles (3.1 km2) (0.2%) is water. It has a rough hilly surface.
Major highways
U.S. Highway 20
Iowa Highway 3
Iowa Highway 13
Iowa Highway 38
Adjacent counties
- Buchanan County (west)
- Clayton County (north)
- Dubuque County (east)
- Fayette County (northwest)
- Jones County (southeast)
- Linn County (southwest)
Demographics
| Historical population | |||
|---|---|---|---|
| Census | Pop. | %± | |
| 1850 | 1,759 | — | |
| 1860 | 11,024 | 526.7% | |
| 1870 | 17,432 | 58.1% | |
| 1880 | 17,950 | 3.0% | |
| 1890 | 17,349 | −3.3% | |
| 1900 | 19,185 | 10.6% | |
| 1910 | 17,888 | −6.8% | |
| 1920 | 18,183 | 1.6% | |
| 1930 | 18,122 | −0.3% | |
| 1940 | 18,487 | 2.0% | |
| 1950 | 17,734 | −4.1% | |
| 1960 | 18,483 | 4.2% | |
| 1970 | 18,770 | 1.6% | |
| 1980 | 18,933 | 0.9% | |
| 1990 | 18,035 | −4.7% | |
| 2000 | 18,404 | 2.0% | |
| 2010 | 17,764 | −3.5% | |
| 2020 | 17,488 | −1.6% | |
| 2023 (est.) | 17,600 | −0.9% | |
| U.S. Decennial Census 1790-1960 1900-1990 1990-2000 2010-2018 |
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2020 census
The 2020 census recorded a population of 17,488 in the county, with a population density of 30.1958/sq mi (11.6587/km2). 97.75% of the population reported being of one race. 94.60% were non-Hispanic White, 0.70% were Black, 1.40% were Hispanic, 0.29% were Native American, 0.27% were Asian, 0.01% were Native Hawaiian or Pacific Islander and 2.74% were some other race or more than one race. There were 8,100 housing units of which 7,141 were occupied.
2010 census
The 2010 census recorded a population of 17,764 in the county, with a population density of 30.7415/sq mi (11.8694/km2). There were 8,028 housing units, of which 7,062 were occupied.
Communities
Cities
Townships
Delaware County is divided into these townships:
- Adams
- Bremen
- Coffins Grove
- Colony
- Delaware
- Delhi
- Elk
- Hazel Green
- Honey Creek
- Milo
- Prairie
- Richland
- South Fork
- North Fork
- Oneida
- Union
Unincorporated Communities
Population ranking
The population ranking of the following table is based on the 2020 census of Delaware County.
† county seat
| Rank | City/Town/etc. | Municipal type | Population (2020 Census) |
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| 1 | † Manchester | City | 5,065 |
| 2 | Dyersville (mostly in Dubuque County) | City | 4,477 |
| 3 | Edgewood (partially in Clayton County) | City | 909 |
| 4 | Earlville | City | 716 |
| 5 | Hopkinton | City | 622 |
| 6 | Delhi | City | 420 |
| 7 | Colesburg | City | 386 |
| 8 | Ryan | City | 350 |
| 9 | Greeley | City | 217 |
| 10 | Dundee | City | 198 |
| 11 | Delaware | City | 142 |
| 12 | Masonville | City | 99 |
See also
In Spanish: Condado de Delaware (Iowa) para niños
