Delaware County: Demographics & People
41,279 people call Delaware County home, in 17,161 households. Median age 46.9 years. (11.7y older than Oklahoma). Population is 5% Hispanic or Latino and 2% Asian. County is gaining 1,563 residents per year (2022-2023). County health: 41% adult obesity, 24% smoke.
- 2.4 people per household (vs Oklahoma avg 2.6).
- 83 dependents per 100 working-age (youth + seniors / 18-64) (vs Oklahoma 67).
Population & Trend
Current population 41,279; figures track the most recent Census ACS 5-year estimates.
| Population | 41,279 people (vs Oklahoma 63,420) |
|---|---|
| Total Town Population | 19,420 people |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Age Distribution
Median age 46.9y is 8.0 years older than the U.S. median (38.9y).
| Age Summary · Total Pop | 41,279 |
|---|---|
| Age Summary · Under 18 | 8,170 |
| Age Summary · 18 To 34 | 7,135.0× |
| Age Summary · 35 To 64 | 15,373.0× |
| Age Summary · 65 Plus | 10,601 |
| Age Summary · Pct Under 18 | 19.8% |
| Age Summary · Pct 18 To 34 | 17.3% |
| Age Summary · Pct 35 To 64 | 37.2% |
| Median age | 46.9 years (vs Oklahoma 35.2y) |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 41,279 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| Census Demographics · Total Population | 41,279 people |
|---|---|
| White residents | 26,130 |
| Black residents | 153 |
| Asian residents | 635 |
| Census Demographics · Aian | 8,397 |
| Census Demographics · Nhpi | 60 |
| Census Demographics · Other Race | 460 |
| Census Demographics · Two Or More Races | 5,444 |
| Diversity Index | 54.0% |
| Asian population | 1.5% (vs Oklahoma 3.2%) |
| Black population | 0.4% (vs Oklahoma 5.5%) |
| Hispanic or Latino population | 4.5% (vs Oklahoma 12.3%) |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Citizenship & Origin
Where residents were born and their citizenship status (Census ACS). 21.1% are foreign-born — above the U.S. average of 13.9%.
| Census Citizenship · Total | 41,279 |
|---|---|
| Census Citizenship · Native | 40,509 |
| Residents born in this state | 18,671 |
| Residents born in another state | 21,596 |
| Census Citizenship · Foreign Born | 8,691 |
| Census Citizenship · Naturalized | 3,808 |
| Census Citizenship · Non Citizen | 242 |
| Foreign-born residents | 21.1% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Households & Family Composition
17,161 households.
| Family households | 11,113 households (vs Oklahoma 16,590) |
|---|---|
| Total households | 17,161 households (vs Oklahoma 23,671) |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Residential Stability & Migration
How long residents have lived here and where they came from. The surrounding county is gaining 1,563 residents per year on net (IRS migration data).
| Migration · People moving in (annual) | 36,405 |
|---|---|
| Migration · People moving out (annual) | 34,842 |
| Migration · Net migration (in − out) | 1,563 |
| Migration · Population growing | Yes |
| Migration · Year | 2022-2023 |
Sources: IRS SOI Migration 2022-2023
Disability
Census ACS measures self-reported functional limitations — vision, hearing, mobility, cognitive, self-care, or independent-living. The U.S. baseline disability rate is about 12–13%; rates trend higher with median age.
| Census Disability · Total Pop | 40,864 |
|---|---|
| With Disability | 8,983 |
| Pct With Disability | 22.0% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Group Quarters
Group quarters are non-household living arrangements counted by the Census — college dormitories, nursing homes, military barracks, group homes, correctional facilities, and similar institutional or shared housing. 0 residents live in group quarters.
| Census Group Quarters · Total | 617 |
|---|
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29
Other
| Census Mobility · Total | 40,875 |
|---|---|
| Census Mobility · Same House | 35,647 |
| Census Mobility · Same County | 2,142 |
| Census Mobility · Diff County Same State | 1,233 |
| Census Mobility · Diff State | 1,816 |
| Census Mobility · From Abroad | 37 |
| Census Mobility · Moved Total | 5,228 |
| Census Mobility · Pct Moved In Year | 12.8% |
| Pct White | 63.3% |
Sources: Census ACS 5-Year 2024 — county-level query · Refreshed 2026-04-29