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 special area in the state of Iowa, in the United States. It's like a big neighborhood with its own local government. In 2020, about 17,488 people lived here. The main town, or county seat, is Manchester. The county got its name from the U.S. state of Delaware.
Contents
Geography of Delaware County
Delaware County covers about 579 square miles. Most of this area is land, with only a small part (about 1.2 square miles) being water. The land in the county is often hilly and not flat.
Main Roads in the County
These are some of the important highways that go through Delaware County:
U.S. Highway 20
Iowa Highway 3
Iowa Highway 13
Iowa Highway 38
Neighboring Counties
Delaware County shares its borders with these other counties:
- Buchanan County (to the west)
- Clayton County (to the north)
- Dubuque County (to the east)
- Fayette County (to the northwest)
- Jones County (to the southeast)
- Linn County (to the southwest)
People and Population
The number of people living in Delaware County has changed a lot over time. Here's a quick look at the population from different years:
| Historical population | |||
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| 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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What the 2020 Census Showed
In 2020, the census counted 17,488 people in Delaware County. This means there were about 30 people living in each square mile. Most people (about 97.75%) said they belonged to one race. About 94.60% were non-Hispanic White. There were 8,100 homes in the county, and 7,141 of them were lived in.
What the 2010 Census Showed
The 2010 census found 17,764 people living in the county. There were 8,028 homes, and 7,062 of them were occupied by people.
Towns and Areas in Delaware County
Cities in the County
Townships (Smaller Areas)
Delaware County is also divided into smaller areas called townships:
- Adams
- Bremen
- Coffins Grove
- Colony
- Delaware
- Delhi
- Elk
- Hazel Green
- Honey Creek
- Milo
- Prairie
- Richland
- South Fork
- North Fork
- Oneida
- Union
Other Small Communities
These are places that are not officially cities or towns:
How Cities Rank by Population
This table shows the cities and towns in Delaware County, listed from largest to smallest based on the 2020 census population.
† This symbol means it's the county seat (the main town).
| Rank | City/Town/etc. | 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
