Written and Fact-checked by Whereig Editors | Last Updated On: June 10, 2026
Map of Delaware County - Delaware County is a county located in the U.S. state of Iowa. Delaware County Map showing cities, highways, important places and water bodies. Get Where is Delaware County located in the map, major cities in Delaware county, population, areas, and places of interest.
Delaware County Map, Iowa
About Delaware County Map, Iowa: The map showing the county boundary, county seat, major cities, highways, water bodies and neighbouring counties.
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Map of Delaware County, Iowa
Delaware County is a county located in the U.S. state of Iowa. It's county seat is Manchester. As per 2020 census, the population of Delaware County is 17510 people and population density is square miles. According to the United States Census Bureau, the county has a total area of 578 sq mi (1,497 km2). Delaware County was established on -22654.
Delaware County Facts
| Continent | North America |
| Country | United States |
| State | Iowa |
| County Seat | Manchester |
| Largest City/Town | Manchester |
| Established | December 21, 1837 |
| Total Area | 579 sq mi (1,500 sq km) |
| Land Area | 578 sq mi (1,497 sq km) |
| Water Area | 1 sq mi (3 sq km) |
| Population | 17,488 (Census 2020) |
| Population Density | 30.3 people per sq mi |
| Time Zone | Central Time Zone (CT) |
| Major Highways | U.S. Highway 20, Iowa Highway 3, Iowa Highway 13, Iowa Highway 38 |
| Major Rivers | Maquoketa River, North Fork Maquoketa River |
| Neighboring Counties | Clayton County, Dubuque County, Jones County, Linn County, Buchanan County, Fayette County |
| Famous For | Backbone State Park, Manchester, scenic river valleys, agriculture, outdoor recreation |
| Top Attractions | Backbone State Park, Bailey's Ford Park, Delaware County Historical Museum, Manchester Whitewater Park |
| Official Website | Official Website |
About Delaware County, Iowa
Delaware County is located in northeastern Iowa and was established in 1837. The county seat is Manchester, which is also the largest city. The county is known for its rolling hills, river valleys, and outdoor recreation opportunities. Delaware County is home to Backbone State Park, Iowa's oldest state park, and remains an important agricultural and tourism destination in the region. :contentReference[oaicite:0]{index=0}
Cities and Towns in Delaware County, Iowa
| City/Town | Population (Census 2020) | Latitude & Longitude |
|---|---|---|
| Manchester (county seat) | 5,065 | 42.4847°N, 91.4554°W |
| Dyersville (part) | 4,477 | 42.4842°N, 91.1221°W |
| Delhi | 460 | 42.4303°N, 91.3302°W |
| Earlville | 812 | 42.4781°N, 91.2730°W |
| Edgewood (part) | 864 | 42.6450°N, 91.4010°W |
| Colesburg | 404 | 42.6378°N, 91.3644°W |
| Delaware | 142 | 42.4736°N, 91.3434°W |
| Dundee | 174 | 42.5769°N, 91.5463°W |
| Greeley | 245 | 42.5850°N, 91.3414°W |
| Hopkinton | 601 | 42.3446°N, 91.2488°W |
| Masonville | 127 | 42.4694°N, 91.6017°W |
| Ryan | 361 | 42.3516°N, 91.4796°W |
| Thorpe | 175 | 42.4661°N, 91.5466°W |
| Oneida (CDP) | 165 | 42.6080°N, 91.3210°W |
Best Golf Courses in Delaware County, Iowa
| Golf Course | Location | Latitude & Longitude |
|---|---|---|
| Pin Oak Pub & Links | Manchester | 42.5036°N, 91.4657°W |
| Backbone Golf & Country Club | Strawberry Point Area | 42.6767°N, 91.5350°W |
| Hart Ridge Golf Course | Manchester | 42.4784°N, 91.5022°W |
| Dyersville Golf & Country Club | Dyersville | 42.4857°N, 91.1079°W |
What are Major Roads and Highways in Delaware County
Major highways connect the county to nearby regions and cities.
- U.S. Highway 20 - major east-west route connecting Manchester with Dubuque, Waterloo, and surrounding counties
- Iowa Highway 3 - serves northern Delaware County and links local communities across northeastern Iowa
- Iowa Highway 13 - north-south route connecting Manchester with Cedar Rapids and Elkader
- Iowa Highway 38 - provides access between Delhi, Hopkinton, and neighboring counties
Neighboring Counties of Delaware County
- Fayette County (northwest)
- Clayton County (north)
- Dubuque County (east)
- Jones County (south)
- Linn County (southwest)
- Buchanan County (west)
What are Top Attractions in Delaware County, Iowa
The county offers a mix of natural and cultural attractions.
| Main Sight Name | City | Famous For |
|---|---|---|
| Backbone State Park | Dundee | Iowa's oldest state park with hiking, camping, and rock formations |
| Manchester Whitewater Park | Manchester | Kayaking, tubing, and river recreation |
| Bailey's Ford Park | Manchester | Camping, fishing, mountain biking, and trails |
| Delaware County Historical Museum | Manchester | County history exhibits and artifacts |
| Tirril Park | Manchester | Community recreation and walking trails |
| Lake Delhi | Delhi | Boating, fishing, and waterfront recreation |
| Maquoketa River Corridor | Countywide | Scenic river landscapes and wildlife viewing |
| Dyersville Commercial Historic District | Dyersville | Historic architecture and local attractions |
| Delhi Dam Area | Delhi | River recreation and scenic views |
| Earlville Historical Museum | Earlville | Local heritage and pioneer history |
| Hopkinton City Park | Hopkinton | Outdoor recreation and community events |
| Backbone Lake | Dundee | Fishing, kayaking, and lakeside recreation |
Distance from Delaware County to Nearby Cities
The following distances are measured by road (driving).
- Manchester to Dyersville (Delaware County), Iowa - 22 mi (35 km)
- Manchester to Independence (Buchanan County), Iowa - 24 mi (39 km)
- Manchester to Elkader (Clayton County), Iowa - 31 mi (50 km)
- Manchester to Oelwein (Fayette County), Iowa - 27 mi (43 km)
- Manchester to Anamosa (Jones County), Iowa - 35 mi (56 km)
- Manchester to Cedar Rapids (Linn County), Iowa - 46 mi (74 km)
- Manchester to Dubuque (Dubuque County), Iowa - 47 mi (76 km)
- Manchester to Waterloo (Black Hawk County), Iowa - 48 mi (77 km)
- Manchester to Cedar Falls (Black Hawk County), Iowa - 54 mi (87 km)
- Manchester to Decorah (Winneshiek County), Iowa - 60 mi (97 km)
- Manchester to Iowa City (Johnson County), Iowa - 72 mi (116 km)
- Manchester to Davenport (Scott County), Iowa - 92 mi (148 km)
- Manchester to Madison (Dane County), Wisconsin - 122 mi (196 km)
- Manchester to Rochester, Minnesota - 103 mi (166 km)
- Manchester to Des Moines (Polk County), Iowa - 162 mi (261 km)
Nearest Airports
Nearest airport of Delaware is Dubuque Regional Airport (DBQ / KDBQ).
References
- QuickFacts - U.S. Census Bureau
- Delaware County Official Website
- United States Geological Survey (USGS)
- National Geodetic Survey
- Delaware County Economic Development
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