Sumner County, Kansas Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Sumner County, KS Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
-
B
Health Around average
-
C
Income Below average
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D
Education Well below average
Source: Map AI Methodology
Population: density and quick facts
| Metric | Sumner County | Kansas Avg | U.S. Average |
|---|---|---|---|
| Population | 22,353 | 2,945,842 | 337,468,954 |
| Population density (per sq mi) | 18.9 | 35.8 | 86.4 |
| Population growth (%/yr) | -0.63% | 0.19% | 0.59% |
| Median age | 41.8 | 38.7 | 37.3 |
| Households | 8,970 | 1,173,585 | 130,235,071 |
Population in Sumner County declined by 6.4% from 2009 to 2024, reaching 22,353 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Sumner County is Gen X, aged 45–60, at 21.3% of residents. That is 2.6 points above Kansas as a whole.
- Gen Z 13–28 4,475 20.0% -2.8 pts
- Millennials 29–44 4,103 18.4% -2.5 pts
- Gen X 45–60 4,762 21.3% +2.6 pts
- Boomers 61–79 4,252 19.0% +2.3 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 Kansas, 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 49.4% of the people living in Sumner County and men 50.6%.
- Women 49.4% Kansas 50.0%
- Men 50.6% Kansas 50.0%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Sumner County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Sumner County has a the economy index of C, which means it is somewhat prosperous.
| Metric | Sumner County | Kansas Avg | U.S. Average |
|---|---|---|---|
| Median household income | $65,474 | $74,287 | $80,455 |
| Income growth (%/yr) | 3.19% | 4.08% | 4.80% |
| Unemployment rate | 5.9% | 3.8% | 5.2% |
The median household income in Sumner County is about 12% lower than in Kansas.
Housing
| Metric | Sumner County | Kansas Avg | U.S. Average |
|---|---|---|---|
| Median home price | $95,090 | $104,644 | $248,835 |
| Median rent | $824 | $1,060 | $1,407 |
| Homeownership rate | 75.1% | 67.1% | 65.2% |
The median home price in Sumner County is about 9.6 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $824 per month for that long.
Commute Time & Mobility
Commuters in Sumner County spend about 47 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 197 hours, about 8.2 full days, spent commuting.
| Metric | Sumner County | Kansas Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 23.6 | 17.2 | 22.4 |
| Round-trip commute (min) | 47.2 | 34.4 | 44.8 |
| Yearly time spent (hours) | 197 | 143 | 187 |
| Estimated yearly cost | $6,099 | $4,448 | $5,790 |
| Work from home | 7.1% | 11.8% | 15.0% |
| Highway traffic (vehicles/day) | 6,736 | 4,500 | 8,813 |
| Local road traffic (vehicles/day) | 491 | 662 | 1,355 |
Fastest commutes among counties in
Kansas:
Wichita County (7.0 min), Scott County (7.1 min), Greeley County (7.2 min).
Slowest:
Linn County (31.3 min), Miami County (30.8 min), Jefferson County (30.3 min).
The average commute time in Sumner County is 24 minutes, longer than the 17 minutes in Kansas.
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
Sumner County has a education index of D, which means it is barely educated.
| Metric | Sumner County | Kansas Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 22.1% | 31.5% | 31.6% |
| Average household size | 2.46 | 2.44 | 2.53 |
Highest education index among counties in
Kansas:
Johnson County (0.4), Douglas County (0.4), Riley County (0.3).
Lowest:
Seward County (0.2), Grant County (0.2), Kearny County (0.2).
Health
Sumner County has a health index of B, which means it is quite healthy.
| Metric | Sumner County | Kansas Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 77.0 | 78.6 | 78.3 |
| Self-rated poor health | 14.7% | 15.3% | 16.3% |
| Smokers | 19.4% | 18.7% | 19.0% |
Highest health index among counties in
Kansas:
Johnson County (0.8), Riley County (0.8), Douglas County (0.8).
Lowest:
Wyandotte County (0.8), Woodson County (0.8), Chautauqua County (0.8).
Sumner County, KS Compared With Nearby Counties
Sumner County, KS is the smallest of the 4 counties compared here, 22,353 residents against a local median of 43,624. Sumner County, KS's median home price, at $95,090, runs 103% above the $46,731 typical of the counties around it.
Commute tells the same story from another angle: 23.6 min against a local median of 15.0 min, 57% above it. The one measure here that carries a verdict is commute, and at 57% above the local median it puts Sumner County, KS at the weaker end of the local range. The counties themselves spread $125,542 on median home price, so Sumner County, KS sits at one end of an already wide local range rather than apart from it. Sumner County, KS has the 2nd highest median home price of the 4 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Sumner County, KS | 22,353 | $65,474 #2/4 | $95,090 #2/4 | 23.6 min #4/4 |
| Sedgwick County, KS | 528,098 | $69,439 | $139,343 | 17.9 min |
| Kay County, OK | 43,624 | $58,650 | $46,731 | 13.0 min |
| Cowley County, KS | 34,411 | $57,252 | $13,801 | 15.0 min |
Frequently Asked Questions
Common questions about Sumner County, Kansas.
How many people live in Sumner County, Kansas?
About 22,353 people live in Sumner County, Kansas, in 8,970 households of 2.5 people on average. The median age is 41.8, so residents are older than the U.S. median of 37.3 by about 5 years.
Is Sumner County, Kansas mostly urban or rural?
Averaged over its land area, Sumner County, Kansas has 19 people per square mile, a density typical of rural areas. That is about 22% of the U.S. average of 86.
Can a typical household afford a home in Sumner County, Kansas?
The median home costs 1.5 times the median household income ($95,090 against $65,474), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $824 a month takes about 15% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How educated are people in Sumner County, Kansas?
22.1% of adults in Sumner County, Kansas hold a bachelor's degree or higher (about 1 in 5), well below the U.S. share of 31.6%.
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