Hamilton County, Ohio Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Hamilton County, OH Population Density Map and Area Scores
Area Score
Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.
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B
Health Around average
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B
Income Around averageWealthier than 80% of counties in Ohio
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B
Education Around averageAmong the top 5 best educated counties in Ohio
Source: Map AI Methodology
Population: density and quick facts
| Metric | Hamilton County | Ohio Avg | U.S. Average |
|---|---|---|---|
| Population | 829,354 | 11,799,428 | 337,468,954 |
| Population density (per sq mi) | 2009.2 | 263.2 | 86.4 |
| Population growth (%/yr) | 0.34% | 0.23% | 0.59% |
| Median age | 38.2 | 38.5 | 37.3 |
| Households | 354,120 | 4,857,236 | 130,235,071 |
Population in Hamilton County declined by 2.8% from 2009 to 2024, reaching 829,354 in 2024.
Population Growth 2009–2024
Race & Ethnicity
Age & Sex
The largest generation in Hamilton County is Gen Z, aged 13–28, at 22.4% of residents. That is 1.5 points above Ohio as a whole.
- Gen Z 13–28 185,628 22.4% +1.5 pts
- Millennials 29–44 179,360 21.6% +0.5 pts
- Gen X 45–60 160,260 19.3% -0.8 pts
- Boomers 61–79 134,179 16.2% -1.9 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 Ohio, 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 51.4% of the people living in Hamilton County and men 48.6%.
- Women 51.4% Ohio 50.8%
- Men 48.6% Ohio 49.2%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Hamilton County
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Hamilton County has a the economy index of B, which means it is quite prosperous.
| Metric | Hamilton County | Ohio Avg | U.S. Average |
|---|---|---|---|
| Median household income | $72,506 | $71,509 | $80,455 |
| Income growth (%/yr) | 4.65% | 4.38% | 4.80% |
| Unemployment rate | 5.0% | 4.8% | 5.2% |
The median household income in Hamilton County is about 1% higher than in Ohio.
Housing
| Metric | Hamilton County | Ohio Avg | U.S. Average |
|---|---|---|---|
| Median home price | $132,433 | $139,044 | $248,835 |
| Median rent | $1,075 | $1,033 | $1,407 |
| Homeownership rate | 59.3% | 67.2% | 65.2% |
The median home price in Hamilton County is about 10.3 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,075 per month for that long.
Commute Time & Mobility
Commuters in Hamilton County spend about 43 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 181 hours, about 7.5 full days, spent commuting.
| Metric | Hamilton County | Ohio Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 21.7 | 21.1 | 22.4 |
| Round-trip commute (min) | 43.4 | 42.2 | 44.8 |
| Yearly time spent (hours) | 181 | 176 | 187 |
| Estimated yearly cost | $5,606 | $5,447 | $5,790 |
| Work from home | 15.3% | 13.0% | 15.0% |
| Highway traffic (vehicles/day) | 15,328 | 8,648 | 8,813 |
| Local road traffic (vehicles/day) | 2,862 | 1,212 | 1,355 |
Fastest commutes among counties in
Ohio:
Hancock County (15.3 min), Van Wert County (15.5 min), Mercer County (16.0 min).
Slowest:
Morgan County (32.5 min), Vinton County (32.0 min), Brown County (32.0 min).
The average commute time in Hamilton County is 22 minutes, longer than the 21 minutes in Ohio.
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
Hamilton County has a education index of B, which means it is quite educated.
| Metric | Hamilton County | Ohio Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 37.3% | 28.1% | 31.6% |
| Average household size | 2.28 | 2.37 | 2.53 |
Highest education index among counties in
Ohio:
Delaware County (0.4), Warren County (0.4), Greene County (0.3).
Lowest:
Holmes County (0.1), Vinton County (0.2), Noble County (0.2).
Health
Hamilton County has a health index of B, which means it is quite healthy.
| Metric | Hamilton County | Ohio Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 76.1 | 77.0 | 78.3 |
| Self-rated poor health | 17.3% | 17.2% | 16.3% |
| Smokers | 22.8% | 24.3% | 19.0% |
Highest health index among counties in
Ohio:
Delaware County (0.8), Union County (0.8), Warren County (0.8).
Lowest:
Adams County (0.8), Holmes County (0.8), Scioto County (0.8).
Hamilton County, OH Compared With Nearby Counties
Hamilton County, OH is the largest of the 6 counties compared here, 829,354 residents against a local median of 171,173. Hamilton County, OH's median home price, at $132,433, runs 18% below the $161,197 typical of the counties around it.
The counties themselves spread $121,606 on median home price, so Hamilton County, OH sits at one end of an already wide local range rather than apart from it. Hamilton County, OH has the 4th highest median home price of the 6 areas compared here.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Hamilton County, OH | 829,354 | $72,506 #6/6 | $132,433 #4/6 | 21.7 min #2/6 |
| Butler County, OH | 393,616 | $82,209 | $89,021 | 22.1 min |
| Kenton County, KY | 171,173 | $81,725 | $127,436 | 20.6 min |
| Boone County, KY | 139,822 | $99,828 | $161,197 | 21.8 min |
| Campbell County, KY | 93,398 | $77,450 | $210,628 | 21.8 min |
| Clermont County, OH | 211,155 | $84,768 | $191,856 | 27.3 min |
Frequently Asked Questions
Common questions about Hamilton County, Ohio.
How big is Hamilton County, Ohio by population?
About 829,354 people live in Hamilton County, Ohio, in 354,120 households of 2.3 people on average. The median age is 38.2, close to the U.S. median of 37.3.
How densely populated is Hamilton County, Ohio?
Averaged over its land area, Hamilton County, Ohio has 2,009 people per square mile, a density typical of urban and suburban areas. That is about 23 times the U.S. average of 86.
Is Hamilton County, Ohio an affordable place to live?
The median home costs 1.8 times the median household income ($132,433 against $72,506), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $1,075 a month takes about 18% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
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