| Name | Delaware County |
| State | Oklahoma |
| FIPS Code | 40041 |
| County Seat | Jay |
| Timezone | Central Daylight Time (CDT) |
| Population (2024) | 41,775 |
| Population Growth Rate(2020-2024) | 3.3% |
| Majority Ethnicity | White 70.07% |
| Public School Majority Ethnicity | Native American 42% |
| Partisan Voting Index | Strongly Republican:+31 |
| Unemployment Rate (May 2026) | 4.5% |
| Sales Tax Rate (2025) | 6.2% |
| Area Code(s) | 539 / 918 |
| Race/Ethnicity | Percentage of Population (2023) |
|---|---|
| White | 70.07% |
| African American | 0.5% |
| Hispanic | 4.77% |
| Asian | 1.66% |
| Native American | 22.86% |
| Hawaiin/Pacific Islander | 0.13% |
| Race/Ethnicity | Percentage of Public School Students (2023) |
|---|---|
| White | 38.01% |
| African American | 0.62% |
| Hispanic | 6.98% |
| Asian | 4% |
| Native American | 42.17% |
| Hawaiin/Pacific Islander | 0.15% |