Marietta: Demographics & People
Marietta's population stands at 53 people, in 16 households. Median age 24.9 years. (13.0y younger than Adair County; 10.3y younger than Oklahoma). Population is 17% White (non-Hispanic). 100% of households are family-led.
- 3.3 people per household (vs Oklahoma avg 2.6).
- 0% non-family households (singles, roommates) (vs Oklahoma 39%).
- 89 dependents per 100 working-age (youth + seniors / 18-64) (vs Oklahoma 67).
Population & Trend
Current population 53; figures track the most recent Census ACS 5-year estimates.
| Population | 19,495 people |
|---|---|
| Population | 53 people (vs Oklahoma 63,420) |
Age Distribution
Median age 24.9y is 14.0 years younger than the U.S. median (38.9y).
| Age Summary · Total Pop | 53 |
|---|---|
| Age Summary · Under 18 | 18 |
| Age Summary · 18 To 34 | 23.0× |
| Age Summary · 35 To 64 | 5.0× |
| Age Summary · 65 Plus | 7 |
| Age Summary · Pct Under 18 | 34.0% |
| Age Summary · Pct 18 To 34 | 43.4% |
| Age Summary · Pct 35 To 64 | 9.4% |
| Median age | 24.9 years (vs Oklahoma 35.2y) |
Sources: Census ACS 5-Year 2024 — place-level B01001 query · Refreshed 2026-04-29
Race, Ethnicity & Diversity
Of 53 residents, race / ethnicity breaks down by Census ACS counts (a person can identify with one or more groups).
| White (non-Hispanic) population | 17.0% (vs Oklahoma 57.8%) |
|---|
Households & Family Composition
16 households. 100% are family households — above the U.S. share of ~65%.
| Family households | 16 households (vs Oklahoma 16,590) |
|---|---|
| Households that are families | 100.0% (vs Oklahoma 61.1%) |
| Total households | 16 households (vs Oklahoma 23,671) |