County · Ohio
Delaware County, Ohio
Delaware County, Ohio. Delaware County had 242,032 residents in 2025 by the Census Bureau's estimate, up 13.0% since 2020, faster than Ohio (+0.9%). It holds 31 places (10 cities, villages and boroughs, 19 towns and townships and 2 census-designated) and 40 census tracts. GEOID 39041.
Delaware County is one of the 10 counties of the Columbus, OH metropolitan statistical area (the Census Bureau's July 2023 delineation).
Residents, July 2025 estimate
242,032
Census Bureau estimate (no margin published)
2020 Census count: 214,124 · ACS 2020-2024: 226,834
Median household income
$133,540
±$2,345 (90% margin)
Ohio: $71,389
Median home value
$445,500
±$4,990 (90% margin)
Ohio: $214,800
Median gross rent
$1,492
±$47 (90% margin)
Ohio: $1,034
How many people live in Delaware County, and is it growing?
The 2020 Census counted 214,124 residents in Delaware County. The Census Bureau estimates 242,032 for July 1, 2025, up 13.0% since 2020, faster than Ohio (+0.9%). The 2020-2024 American Community Survey puts the population at 226,834 over 443 square miles of land.
| Measure | Delaware County | Ohio | Change since 2015-2019 |
|---|---|---|---|
| Total population | 226,834 | 11,810,293 | +25,699 |
| Households | 82,287±534 | 4,863,191 | +12,302 |
| Average household size | 2.73±0.02 | 2.37 | −0.11 |
| Housing units | 86,269±93 | 5,292,391 | +13,035 |
Delaware County's population since 2000
From 109,989 in 2000 to 242,032 in 2025: up 120.1%. The 2000, 2010 and 2020 figures are census counts. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); PEP Vintage 2025 (CO-EST2025); 2020 Census · Check it at data.census.gov
What cities and towns are in Delaware County?
Delaware County holds 31 places: 10 cities, villages and boroughs (incorporated places), 19 towns and townships (county subdivisions with their own government) and 2 census-designated places. The largest is Delaware with 46,636 residents (2025 estimate). Places that cross a county line are listed with the share of their 2020 residents who live in this county.
| Delaware | 41,302 | $99,786 |
|---|---|---|
| Orange Township, Delaware County | 37,452 | $146,212 |
| Liberty Township, Delaware County | 33,252 | $186,707 |
| Genoa Township | 24,806 | $176,937 |
| Columbus | 905,748 | $66,082 |
| Powell | 14,163 | $195,495 |
| Concord Township, Delaware County | 11,207 | $153,941 |
| Berlin Township, Delaware County | 9,344 | $168,698 |
| Westerville | 39,190 | $109,404 |
| Sunbury | 6,614 | $108,787 |
| Berkshire Township | 5,477 | $145,091 |
| Harlem Township | 4,554 | $122,311 |
| Dublin | 49,328 | $160,296 |
| Washington Township, Delaware County | 4,250 | $167,198 |
| Scioto Township, Delaware County | 3,742 | $158,920 |
| Delaware Township, Delaware County | 2,713 | $75,000 |
| Kingston TownshipGEOID 3904140362 | 2,359 | $111,667 |
| Trenton Township | 2,276 | $136,667 |
| Porter Township, Delaware CountyGEOID 3904164178 | 2,194 | $124,438 |
| Troy Township, Delaware County | 2,105 | $91,289 |
| Radnor TownshipGEOID 3904165312 | 1,570 | $116,964 |
| Brown Township, Delaware CountyGEOID 3904109428 | 1,402 | $75,125 |
| Ashley | 1,198 | $56,596 |
| Ostrander | 1,094 | $159,375 |
| Oxford Township, Delaware County | 950 | $90,167 |
| Galena | 924 | $134,830 |
| Shawnee Hills, Delaware County | 835 | $143,750 |
| Thompson Township, Delaware CountyGEOID 3904176617 | 659 | $167,674 |
| Marlboro Township, Delaware CountyGEOID 3904147908 | 295 | $165,189 |
| RadnorGEOID 3965298 | 180 | not published |
| KilbourneGEOID 3940124 | 127 | not published |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 place-by-county parts · Check it at data.census.gov
Who lives in Delaware County?
The median resident of Delaware County is 40.1 years old; 24.8% are under 18 and 15.1% are 65 or older. The largest group is non-Hispanic white residents at 79.2%, then non-Hispanic Asian residents at 8.6%. 9.7% of residents were born outside the United States.
| Measure | Delaware County | Ohio | Change since 2015-2019 |
|---|---|---|---|
| Median age | 40.1±0.4 | 39.7 | +1.3 |
| Under 18 years | 24.8%±0.1 pts | 22.0% | – |
| 65 years and over | 15.1%±0.1 pts | 18.3% | – |
| Hispanic or Latino (any race) | 3.5% | 4.8% | +0.9 pts |
| White alone, not Hispanic | 79.2%±0.4 pts | 75.8% | −5.8 pts |
| Black or African American alone, not Hispanic | 4.3%±0.2 pts | 12.0% | +1.0 pts |
| Asian alone, not Hispanic | 8.6%±0.3 pts | 2.5% | +2.3 pts |
| American Indian and Alaska Native alone, not Hispanic | 0.0%±0.1 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0%±0.1 pts | 0.0% | – |
| Two or more races, not Hispanic | 4.0%±0.5 pts | 4.3% | – |
| Some other race alone, not Hispanic | 0.4%±0.2 pts | 0.4% | – |
| Born outside the United States | 9.7%±0.5 pts | 5.2% | +2.1 pts |
| Speak a language other than English at home (age 5+) | 11.3%±0.7 pts | 8.0% | – |
| Civilian veterans (age 18+) | 5.9%±0.5 pts | 6.6% | – |
| With a disability | 8.4%±0.6 pts | 14.4% | – |
| No health insurance coverage | 4.7%±0.6 pts | 6.4% | +1.0 pts |
| High school graduate or higher (age 25+) | 97.1%±0.4 pts | 91.8% | – |
| Bachelor's degree or higher (age 25+) | 59.4%±1.1 pts | 31.5% | +5.1 pts |
| Graduate or professional degree (age 25+) | 24.0%±1.0 pts | 12.2% | – |
| Moved from another state in the past year | 1.4%±0.3 pts | 1.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Delaware County earn?
Half of Delaware County's 82,287 households earn less than $133,540 a year (±$2,345), against $71,389 in Ohio. In 2015-2019 it was $131,571 in 2024 dollars; the margins of error cannot tell the two periods apart. 4.7% of residents live below the poverty line.
| Measure | Delaware County | Ohio | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $133,540±$2,345 | $71,389 | no clear change |
| Mean household income | $166,030±$3,852 | $96,990 | – |
| Per capita income | $61,395±$1,461 | $40,552 | +$2,178 |
| People below the poverty line | 4.7%±0.6 pts | 13.3% | no clear change |
| Children under 18 below the poverty line | 5.1%±1.4 pts | 17.8% | no clear change |
| Households receiving SNAP | 3.6%±0.6 pts | 12.5% | – |
| Households with a broadband subscription | 96.0%±0.5 pts | 90.1% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Delaware County?
Owners occupy 78.5% of Delaware County's occupied homes and renters 21.5%. The median owner-occupied home is valued at $445,500 by its owner (±$4,990). The median renter pays $1,492 a month including utilities, and 33.0% of renters pay 35% or more of their income on rent.
| Measure | Delaware County | Ohio | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $445,500±$4,990 | $214,800 | +$65,462 |
| Median gross rent | $1,492±$47 | $1,034 | +$176 |
| Renters paying 35% or more of income on rent | 33.0%±3.7 pts | 37.3% | +4.8 pts |
| Median monthly owner costs, with a mortgage | $2,493±$41 | $1,517 | – |
| Owner-occupied homes | 78.5%±1.4 pts | 67.2% | −2.9 pts |
| Housing units | 86,269±93 | 5,292,391 | +13,035 |
| Homeowner vacancy rate | 0.5%±0.3 pts | 0.8% | – |
| Rental vacancy rate | 3.0%±1.2 pts | 4.4% | – |
| Single-family detached homes | 74.3%±1.1 pts | 68.8% | – |
| Mobile homes | 2.0%±0.5 pts | 3.4% | – |
| Built 2020 or later | 5.1%±0.6 pts | 1.1% | – |
| Built 1939 or earlier | 6.8%±0.7 pts | 19.0% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Delaware County building?
Builders took permits for 2,016 new housing units across Delaware County in 2025 (1,637 single-family), 8.3 per 1,000 residents.
Source: Building Permits Survey, annual county files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Delaware County get to work?
67.9% of Delaware County's workers drive alone and 25.9% work from home. The average trip to work takes 25.4 minutes. The unemployment rate in 2020-2024 averaged 3.0%.
| Measure | Delaware County | Ohio | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 69.9%±0.9 pts | 63.1% | – |
| Unemployment rate | 3.0%±0.4 pts | 4.8% | no clear change |
| Drove alone to work | 67.9%±1.3 pts | 75.1% | – |
| Carpooled | 4.2%±0.5 pts | 7.5% | – |
| Public transportation | 0.1%±0.1 pts | 1.0% | – |
| Walked | 1.3%±0.3 pts | 2.0% | – |
| Worked from home | 25.9%±1.1 pts | 13.0% | +17.6 pts |
| Mean travel time to work | 25.4 min±0.7 | 23.4 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What are Delaware County's census tracts?
Delaware County is divided into 40 census tracts. Among those with a reliable estimate, median household income runs from $54,038 (Tract 105.30) to $248,682 (Tract 115.65).
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) · Check it at data.census.gov
How does Delaware County compare with Ohio's other counties?
| Measure | Rank |
|---|---|
| Population | 12th of 88 |
| Growth 2020-2025 | 2nd of 88 |
| Residents per square mile | 13th of 88 |
| Median household income | 1st of 88 |
| Median home value | 1st of 88 |
| Median gross rent | 1st of 88 |
| Poverty rate | 88th of 88 |
| Bachelor's degree or higher | 1st of 88 |
| Median age | 64th of 88 |
Source: PlainCities ranks from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Delaware County are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' school search.