May we count your visit with Google Analytics? It uses cookies and sends visit data to Google. You can change this any time under Cookie choices. Privacy

Where am ILOCATED

Delaware County, Iowa

Delaware County, Iowa, has 17,674 residents (July 2025 estimate). Its county seat is Manchester. It uses Central Time and covers 578 sq mi (1,496 km²) of land.

Des MoinesCedar RapidsDavenport
Delaware County in Iowa
ManchesterDyersvilleEarlvilleHopkinton
Delaware County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
17,674
Land area
578 sq mi (1,496 km²)
County seat or government
Manchester
Time zone
Central TimeUTC-06:00 in January; UTC-05:00 in July
Median household income
$74,989 ± $6,892
Median home value
$177,900 ± $16,526
Median rent, with utilities
$764 ± $86
Homes lived in by their owners
79.6% ± 2.0 points
County type
County
Metro or micro area
Outside any metro or micro areaNext to: Dubuque, IA metro area and Cedar Rapids, IA metro area
Water area
1.23 sq mi (3.18 km²)
State
Iowa
County code (FIPS)
19055
Coordinates (central point)
42.473014, -91.366767
Open this point in the location finder

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Delaware County

Time zoneLocal time and UTC offsetNext clock change
Central TimeAmerica/ChicagoUTC-06:00 in January; UTC-05:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Near a time-zone line, check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 520578,193 people
  2. 523106,450 people
  3. 520405,584 people
  4. 520762,258 people
  5. 522371,830 people
  6. 520421,804 people
  7. 520411,468 people
  8. 522181,413 people
  9. 520351,331 people
  10. 522231,199 people
  11. 52330940 people
  12. 52078870 people
All 17
  1. 52065671 people
  2. 52038463 people
  3. 52050422 people
  4. 50654275 people
  5. 52036135 people

17 ZIP Code areas overlap Delaware County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

We don’t have a website for this county yet. The US government’s local-office directory ↗ lists its offices. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Delaware County, largest first

  1. Delaware Township6,740 people
  2. Oneida Township1,422 people
  3. South Fork Township1,233 people
  4. Milo Township1,182 people
  5. Bremen Township926 people
  6. Honey Creek Township916 people
  7. Delhi Township803 people
  8. Colony Township753 people
  9. Adams Township745 people
  10. Elk Township719 people
  11. Union Township604 people
  12. Richland Township530 people
All 16
  1. Coffins Grove Township437 people
  2. Hazel Green Township191 people
  3. Prairie Township183 people
  4. North Fork Township174 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Iowa, by county

School districts in Delaware County, largest first

  1. Western Dubuque County Community School District22,697 people
  2. West Delaware County Community School District9,613 people
  3. Monticello Community School District6,887 people
  4. Maquoketa Valley Community School District4,608 people
  5. Starmont Community School District3,756 people
  6. Edgewood-Colesburg Community School District3,033 people
  7. North Linn Community School District2,944 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Manchester, Iowa (city)5,191 people
  2. Dyersville, Iowa (city)4,423 people
  3. Earlville, Iowa (city)868 people
  4. Edgewood, Iowa (city)752 people
  5. Hopkinton, Iowa (city)676 people
  6. Colesburg, Iowa (city)545 people
  7. Delhi, Iowa (city)432 people
  8. Ryan, Iowa (city)346 people
  9. Greeley, Iowa (city)252 people
  10. Dundee, Iowa (city)177 people
  11. Delaware, Iowa (city)138 people
  12. Masonville, Iowa (city)68 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Buchanan County, Iowa24 mi west
  2. Dubuque County, Iowa25 mi east
  3. Clayton County, Iowa26 mi north
  4. Jones County, Iowa27 mi southeast
  5. Linn County, Iowa30 mi southwest
  6. Fayette County, Iowa36 mi northwest

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.