Checked
Delaware County, OH
9 cities and towns and 11 ZIP codes in Delaware County, Ohio.
Population
226,834
Land area
443sq mi
People per sq mi
512
ZIP codes
11
Cities and towns in Delaware County
Delaware County at a glance
- Delaware County is 77% denser than Ohio as a whole.
- It is the 12th most populous of 88 counties in Ohio.
- Households here earn a median of $133,540 a year, 87% more than the Ohio figure of $71,389.
- A typical owner-occupied home is valued at $445,500 (about 2.1 times the Ohio figure) and median rent is $1,492 a month.
- The biggest population centers are Delaware (44,589), Powell (14,451) and Sunbury (8,005).
Local data for Delaware County, OH
Counts from official public data
- Hospitals1
- Emergency Rooms1
- Nursing Homes9
- Schools70
- Colleges3
- Libraries7
- Banks59
- Post Offices11
- Parks110
- Grocery Stores55
- Restaurants646
- Affordable Housing12
- Home Health Agencies5
- Hospice Care3
- Dialysis Centers2
- Rehab & Long-Term Care Hospitals1
- Community Health Centers1
- Mental Health & Addiction Treatment7
- Private Schools11
- Community Colleges & Trade Schools1
- Toxic Release Facilities13
- Historic Places45
Housing and community stats
Delaware County, OH, American Community Survey 2020-2024
Median household income
$133,540
Poverty rate
4.7%
Median home value
$445,500
Prices +6.3% in a year
Median rent
$1,492/mo
Homeownership
78.5%
Bachelor's or higher
59.4%
Median age
40.1
Average commute
25.4 min
Largest reported origins and ancestries: German Americans (57,612), Irish Americans (33,038), Italian Americans (15,285).
Economy and federal money
Jobs, income, federal spending and pandemic loans
Unemployment rate
3.1%
Aug 2026, -0.7 pts in a year
Average annual pay
$75,804
100,816 jobs, 2025
Income per person
$96,573
BEA, 2024
Federal spending
$2.4B
FY 2026, $11,281 per person
PPP loans
$467M
6,001 loans, 59,073 jobs reported
Campaign donations
$2.7M
Itemized, 2026 cycle
How people get to work
Delaware County, OH, workers 16 and older. American Community Survey 5-year estimates
- Drove alone67.9%
- Carpooled4.2%
- Public transit0.1%
- Walked1.3%
- Bicycle0.1%
- Taxi, ride-hailing, motorcycle or other0.5%
- Worked from home25.9%
Average one-way commute: 25.4 minutes for people who do not work from home.
Environment and hazard risk
Delaware County, OH, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: hail
Storm events since 1996
513
Most often thunderstorm wind
Flood insurance policies
201
0.3% of homes, county
July high / Jan low
86° / 22°F
42.2 inches of rain a year
Hazards, floods and storm historyCheck a flood zone45 historic places
Health statistics
Share of adults in Delaware County, OH, CDC PLACES estimates
Obesity
31.5%
U.S. 33.3% -1.8 pts
Diabetes
10.1%
U.S. 12.1% -2.0 pts
Smoking
10.1%
U.S. 12.8% -2.7 pts
Uninsured (18-64)
5.0%
U.S. 11.1% -6.1 pts
Cities, towns and ZIP codes in Delaware County
Population shown
Frequently asked questions
- What is the largest city in Delaware County, OH?
- Delaware is the largest city or town in Delaware County, with about 44,589 residents.
- How many ZIP codes are in Delaware County?
- Delaware County includes 11 ZIP Code Tabulation Areas, including 43003, 43015, 43021, 43032, 43035.
- What is the population of Delaware County, OH?
- About 226,834 people live in Delaware County, based on American Community Survey 5-year estimates.
- What counties border Delaware County?
- Delaware County borders Franklin County, Licking County, Union County, Marion County, Knox County, Morrow County.
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023