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County ProfileOH

Delaware County

Population: 214,124 · 9 ZIP codes

Demographics

Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.

People
Total population
214,124
People
Median age
40.1
Housing
Total households
82,287
Income
Median household income
$133,540
Housing
Total housing units
86,269
Employment
Employment rate
67.7%
Education
Bachelor’s degree or higher
59.4%
Healthcare
Insured population
95.3%
County details
Local time 04:42:16(ET)
NameDelaware
Total ZIP codes9total
ZIP codes (by type)
9 Standard
Area code220, 380, 614, 740
TimezoneEastern Time (ET)
Coordinates40.2789411, -83.0074622
Land area443.1 sq miles(1,147.8 km²)

Map of Delaware county, Ohio with ZIP codes

Map of Delaware County, Ohio and ZIP codes

Cities and Communities in Delaware County

Compare the largest cities in Delaware County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.

CityPopulation
Median incomeHousehold
ZIP codes
Delaware41,302$99,7861ZIPs
Lewis Center33,0321ZIPs
Powell14,163$195,4951ZIPs
Sunbury6,614$108,7871ZIPs
Ashley1,198$56,5961ZIPs
Ostrander1,094$159,3751ZIPs
Galena924$134,8301ZIPs
Radnor1801ZIPs
Kilbourne1271ZIPs

Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.

ZIP Codes in Delaware County

Review the most populated postal areas across Delaware County. Use the ranking below to compare resident density and demographic scales between the county's major zones.

ZIPCity
Median incomeHousehold
Population (ZIP)
43015Delaware$105,32257,563
43065Powell$154,48144,829
43035Lewis Center$154,68333,032
43074Sunbury$119,29615,288
43021Galena$167,94114,622
43061Ostrander$157,5684,593
43003Ashley$69,8522,776
43066Radnor$129,0121,264
43032Kilbourne39

Data Sources & Citations

The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:

  • United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
  • United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS