Delaware County, Oklahoma Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates · 25th-largest in Oklahoma
The population of Delaware County, Oklahoma is 41,017 as of the 2023 American Community Survey, making it the 25th-largest county in Oklahoma. The median household income is $55,114, the median home value is $164,900, and the median age is 47.0.
The population of Delaware County has grown 0.5% since 2010 (41,564 → 41,771), a +0.04% annualized rate.
41,017
Population
+0.04%
Annual growth
56
People / sq mi
$55,114
Median Income
$164,900
Median Home Value
Delaware County covers 738 sq mi of land at 55.6 people per square mile.
About Delaware County, OK
Delaware County is distinguished by its share of foreign-born residents, 51.2% of the population. With 41,017 residents, Delaware County is a county in Oklahoma. It ranks #25 among counties in Oklahoma by population.
Incomes run on the lower side: a median household income of $55,114, below the US median of $78,538. The poverty rate is 13.7%, above the national 12.4%. Median home value is $164,900, with typical rent around $868.
Roughly 19.2% of adults have a bachelor’s, below the national 35.0%. Around 8.1% of workers work from home, below the national 14.0%, and the average commute runs about 30 minutes each way.
The large foreign-born share is a defining thread in Delaware County, shaping language, household composition, and the labor force behind the economic figures above.
Delaware County Population History (2010-2024)
The county of Delaware County had a population of 41,564 in 2010 and 41,771 in 2024, a 0.5% growth over 14 years. The peak was 43,011 in 2019. Average annual growth rate: 0.05%.
41,771
Population (2024)
41,564
Population (2010)
43,011
Peak (2019)
0.05%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 41,564 |
| 2011 | 41,664 |
| 2012 | 41,733 |
| 2013 | 41,717 |
| 2014 | 41,792 |
| 2015 | 41,738 |
| 2016 | 41,967 |
| 2017 | 42,692 |
| 2018 | 42,897 |
| 2019 | 43,011 |
| 2020 | 40,390 |
| 2021 | 40,969 |
| 2022 | 41,491 |
| 2023 | 41,775 |
| 2024 | 41,771 |
Race & Ethnicity
| White | 63.5% |
| Black or African American | 0.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 31.2% |
| Two or More Races | 0.0% |
Age & Sex
47.0
Median Age
50.5%
Female
49.5%
Male
25.3%
Age 65+
Age Distribution
Children (under 15): 16.1% · Seniors (65+): 25.3%
Income & Poverty
| Median household income | $55,114$-8,489 vs state |
| Mean household income | $74,796 |
| Per-capita income | $35,376 |
| Poverty rate | 13.7%+2.6% vs state |
| Unemployment rate | 2.5% |
| Employment-to-population | 48.7% |
Top Industries by Employment
The largest employment sector in Delaware County is professional & business services, accounting for 21.5% of workers.
How residents commute
0.0%
Drive alone
1.6%
Carpool
76.0%
Public transit
8.1%
Work from home
29.7 min
Avg commute
Housing
$164,900$-21,000 vs state
Median home value
$868
Median rent
75.9%
Homeownership rate
24,282
Total housing units
69.7%
Occupied
30.3%
Vacant
24.1%
Renter-occupied
Social & access
85.0%
With health insurance
91.6%
With broadband internet
51.2%
Foreign-born
9.0%
Veterans (18+)
21.8%
With a disability
95.9%
Speak language other than English at home
Education
87.4%
High School+
19.2%
Bachelor's+
Largest cities in Oklahoma
Other counties in Oklahoma
Part of Oklahoma
Metro areas in Oklahoma
County rankings
Frequently Asked Questions
Delaware County, Oklahoma has a population of 41,017 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 25th-largest county in Oklahoma. Population density is 56 people per square mile.
The population of Delaware County has grown 0.5% since 2010 (41,564 → 41,771), a +0.04% annualized rate.
The median household income in Delaware County, Oklahoma is $55,114, with mean (average) household income of $74,796 and per-capita income of $35,376. 13.7% of residents live below the federal poverty level.
In Delaware County, the largest racial and ethnic groups are White (63.5%), Hispanic or Latino (31.2%), Black or African American (0.5%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.
The median age in Delaware County, Oklahoma is 47.0 years. Residents are 50.5% female and 49.5% male.
The median home value in Delaware County is $164,900 and median monthly rent is $868. 75.9% of occupied housing units are owner-occupied. The county has 24,282 total housing units, 30.3% of which are vacant.
The largest employment sector in Delaware County, Oklahoma is professional, scientific, and management services, employing 21.5% of workers. The unemployment rate is 2.5%.
Oklahoma City is among the largest cities associated with Delaware County, Oklahoma, with a population of 688,693.
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Statewide data for Oklahoma
Population, race, income, age, and trends across Oklahoma
Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.