McClain County, Oklahoma Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
McClain County, OK Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
-
C
Health Below averageHealthier than 86% of counties in Oklahoma
-
B
Income Around averageAmong the top 3 wealthiest counties in Oklahoma
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D
Education Well below averageBetter educated than 87% of counties in Oklahoma
Source: Map AI Methodology
Population: density and quick facts
| Metric | McClain County | Oklahoma Avg | U.S. Average |
|---|---|---|---|
| Population | 45,273 | 4,028,385 | 337,468,954 |
| Population density (per sq mi) | 78.0 | 57.6 | 86.4 |
| Population growth (%/yr) | 2.48% | 0.48% | 0.59% |
| Median age | 37.0 | 38.2 | 37.3 |
| Households | 16,421 | 1,561,116 | 130,235,071 |
Population in McClain County grew by 41.7% from 2009 to 2024, reaching 45,273 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in McClain County is Millennials, aged 29–44, at 21.5% of residents. That is about the same share as Oklahoma.
- Gen Z 13–28 8,983 19.8% -2.7 pts
- Millennials 29–44 9,747 21.5% on par
- Gen X 45–60 9,635 21.3% +2.8 pts
- Boomers 61–79 7,554 16.7% -0.1 pts
Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Oklahoma, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.
Male and female share
Women are 50.2% of the people living in McClain County and men 49.8%.
- Women 50.2% Oklahoma 50.3%
- Men 49.8% Oklahoma 49.7%
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Residents matching this profile
100% of everyone living in McClain County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
McClain County has a the economy index of B, which means it is quite prosperous.
| Metric | McClain County | Oklahoma Avg | U.S. Average |
|---|---|---|---|
| Median household income | $83,757 | $65,606 | $80,455 |
| Income growth (%/yr) | 4.52% | 3.94% | 4.80% |
| Unemployment rate | 4.7% | 4.9% | 5.2% |
The median household income in McClain County is about 28% higher than in Oklahoma.
Housing
| Metric | McClain County | Oklahoma Avg | U.S. Average |
|---|---|---|---|
| Median home price | $136,663 | $133,462 | $248,835 |
| Median rent | $953 | $1,014 | $1,407 |
| Homeownership rate | 79.3% | 65.8% | 65.2% |
The median home price in McClain County is about 11.9 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $953 per month for that long.
Commute Time & Mobility
Commuters in McClain County spend about 54 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 224 hours, about 9.3 full days, spent commuting.
| Metric | McClain County | Oklahoma Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 26.8 | 19.0 | 22.4 |
| Round-trip commute (min) | 53.7 | 37.9 | 44.8 |
| Yearly time spent (hours) | 224 | 158 | 187 |
| Estimated yearly cost | $6,931 | $4,901 | $5,790 |
| Work from home | 9.6% | 9.4% | 15.0% |
| Highway traffic (vehicles/day) | 9,846 | 5,635 | 8,813 |
| Local road traffic (vehicles/day) | 1,397 | 941 | 1,355 |
Fastest commutes among counties in
Oklahoma:
Cimarron County (4.8 min), Woods County (8.5 min), Harmon County (8.8 min).
Slowest:
Cotton County (30.4 min), Logan County (28.5 min), Lincoln County (28.0 min).
The average commute time in McClain County is 27 minutes, longer than the 19 minutes in Oklahoma.
Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.
Education & Households
McClain County has a education index of D, which means it is barely educated.
| Metric | McClain County | Oklahoma Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 24.6% | 24.8% | 31.6% |
| Average household size | 2.74 | 2.50 | 2.53 |
Highest education index among counties in
Oklahoma:
Payne County (0.3), Cleveland County (0.3), Oklahoma County (0.3).
Lowest:
Adair County (0.2), Okfuskee County (0.2), Greer County (0.2).
Health
McClain County has a health index of C, which means it is somewhat healthy.
| Metric | McClain County | Oklahoma Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 76.4 | 76.5 | 78.3 |
| Self-rated poor health | 16.4% | 20.3% | 16.3% |
| Smokers | 20.4% | 22.6% | 19.0% |
Highest health index among counties in
Oklahoma:
Cleveland County (0.8), Canadian County (0.8), Woods County (0.8).
Lowest:
Adair County (0.7), McIntosh County (0.7), Choctaw County (0.7).
McClain County, OK Compared With Nearby Counties
McClain County, OK is the 5th largest of the 6 counties compared here, 45,273 residents against a local median of 73,462. McClain County, OK's commute, at 26.8 min, runs 29% above the 20.8 min typical of the counties around it. That is the weaker end of the local range on this measure.
Median household income tells the same story from another angle: $83,757 against a local median of $67,066, 25% above it. The picture is mixed rather than uniform: median household income runs ahead of the neighbourhood while commute runs behind it, so McClain County, OK is trading one against the other rather than simply out-performing what surrounds it. The counties themselves spread 4.9 min on commute, so McClain County, OK sits at one end of an already wide local range rather than apart from it. McClain County, OK has the 6th lowest commute of the 6 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| McClain County, OK | 45,273 | $83,757 #1/6 | $136,663 #5/6 | 26.8 min #6/6 |
| Cleveland County, OK | 300,046 | $76,969 | $240,311 | 21.4 min |
| Garvin County, OK | 25,859 | $58,594 | $86,817 | 18.5 min |
| Grady County, OK | 56,605 | $75,292 | $143,749 | 23.3 min |
| Pottawatomie County, OK | 73,462 | $61,519 | $157,894 | 18.6 min |
| Oklahoma County, OK | 805,901 | $67,066 | $191,644 | 20.8 min |
Frequently Asked Questions
Common questions about McClain County, Oklahoma.
What is the population of McClain County, Oklahoma?
About 45,273 people live in McClain County, Oklahoma, in 16,421 households of 2.7 people on average. The median age is 37.0, close to the U.S. median of 37.3.
Is McClain County, Oklahoma urban or rural?
Averaged over its land area, McClain County, Oklahoma has 78 people per square mile, a density typical of rural areas. That is close to the U.S. average of 86.
How affordable is housing in McClain County, Oklahoma?
The median home costs 1.6 times the median household income ($136,663 against $83,757), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $953 a month takes about 14% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
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