Warren County, Ohio

County in OH, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

250,008

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

40.1

years ∙ half population younger than 40.1, half older

Diversity Index

32.2%

chance two random people differ in race and ethnicity

Nativity

9.1%

foreign-born population

90.9%Native

9.1% Foreign-born

Geographic Context

Location, size, and surroundings

About

Warren County is a county in Ohio, United States.

Location

County in OH, US

Co-ordinates

DEC39.425663° N, 84.169940° W

DMS39° 25′ 32.39″ N, 84° 10′ 11.78″ W

Population Density & area

622.8/sq mi (240.5/km²)

Total Area

407.5 sq mi (1,055.4 km²)

Land Area

401.4 sq mi (1,039.7 km²) · 98.5%

Water Area

6.1 sq mi (15.7 km²) · 1.5%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

50.6% male

Male 50.6%

Female 49.4%

males per 100 females

Warren County 102.3

Ohio 97.3

United States 98

Nativity

9.1%

foreign-born population

90.9%Native

9.1% Foreign-born

% Foreign-born

Warren County 9.1%

Ohio 5.2%

United States 14.1%

Age Distribution

How the population is spread across age groups

Median Age

40.1

years ∙ half population younger than 40.1, half older

Warren County

40.1

Ohio

39.7

United States

38.9

Dependency ratio

65.4

dependents per 100 working-age adults

Warren County 65.4

Ohio 67.4

United States 64.4

AGE DISTRIBUTION

Distribution of age group

Median age

	Warren County	Ohio	United States
Age Group
Children (Under 18)	23.8%	22%	22%
Working age (18-64)	60.4%	59.7%	60.8%
Senior (65+)	15.8%	18.3%	17.2%
Dependency ratio
Total dependency ratio	65.4	67.4	64.4
Child dependency ratio	39.4	36.9	36.1
Old-age dependency ratio	26.1	30.6	28.3

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

81.8%

Black

3.2%

Asian

7.2%

Hispanic

3.5%

Other

4.3%

Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.

Diversity Index

32.2%

chance two random people differ in race and ethnicity

Warren County 32.2%

Ohio 40.6%

United States 61.4%

Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.

RACIAL & ETHNIC COMPOSITION

Race & Ethnicity

Percentage of Warren County population

Racial and ethnic composition — Warren County vs Ohio vs United States. Source: ACS 2020-2024 5-Year Estimates.
	Warren County	Ohio	United States
Hispanic or Latino	3.5%	4.8%	19.3%
Mexican	1.8%	2%	11.3%
Puerto Rican	0.4%	1.2%	1.8%
Cuban	0.1%	0.1%	0.8%
Other Hispanic / Latino	1.2%	1.4%	5.5%
Not Hispanic or Latino	96.5%	95.2%	80.7%
One race	92.9%	90.9%	76.4%
White	81.8%	75.8%	57.4%
Black or African American	3.2%	12%	11.9%
American Indian and Alaska Native	0.1%	0.1%	0.5%
Asian	7.2%	2.5%	5.9%
Native Hawaiian and Other Pacific Islander	0%	0%	0.2%
Some Other Race	0.7%	0.4%	0.6%
Two or more races (Multiracial)	3.6%	4.3%	4.3%

Household & Families Composition

Household size, type, and family structure

Household structure

74.7% family

Family 74.7%

Non family 25.3%

% family households

Warren County 74.7%

Ohio 61.2%

United States 64.2%

Average household size

2.66

persons per household

Warren County

2.66

Ohio

2.37

United States

2.53

Household & Family COMPOSITION

Households

Percentage of Warren County population

	Warren County	Ohio	United States
Total households	92,052	4,863,191	129,227,496
Average houshold size	2.66	2.37	2.53
Family households	68,782	2,976,515	82,990,528
Average family size	3.09	3.01	3.14
Married couple family	57,360	2,158,670	60,637,388
Other families	11,422	817,845	22,353,140
Male householder	3,776	235,478	6,572,819
Female householder	7,646	582,367	15,780,321
Non-family households	23,270	1,886,676	46,236,968
One-person households	19,113	1,556,005	37,140,836
Male householder	8,262	716,929	16,871,444
Senior (65+) living alone	2,602	227,267	5,225,110
Female householder	10,851	839,076	20,269,392
Senior (65+) living alone	6,126	427,631	10,089,070
Other living arrangements	4,157	330,671	9,096,132

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

96,061

housing units

Warren County 96,061

Ohio 5,292,391

United States 143,775,355

Occupancy status

95.8% occupied

Occupied 95.8%

Vacant 4.2%

vacancy rate

Warren County 4.2%

Ohio 8.1%

United States 10.1%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

83.3%

Single family houses

83.3%

Apartments in multi-unit structures

15.8%

Mobile homes

Boat, RV, van, etc

Median Year Built

1995

Half of houses were built before 1995, and half after.

Historic ∙ 1939 or earlier

5.6%

Postwar & mid-century ∙ 1940 - 1969

15.4%

Late 20th century ∙ 1970 - 1999

39.8%

Modern ∙ 2000 or later

39.2%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Warren County	Ohio	United States
Rooms per unit
Median rooms	6.7	5.9	5.5
1–3 rooms	6.5%	10.7%	15.1%
4–6 rooms	41.3%	50.1%	51.6%
7+ rooms	52.2%	39.3%	33.4%
Bedrooms
No bedroom / studio	0.9%	1.7%	2.9%
1 bedroom	4.7%	9.4%	10.9%
2 bedrooms	20.4%	25.4%	25%
3 bedrooms	38.8%	41.6%	38.7%
4+ bedrooms	35.1%	21.9%	22.4%
At a glance
Median year built	1995	1971	1981
Total housing units	96,061	5,292,391	143,775,355

Occupancy Profile

Who is inside and how they use it

Homeownership

79.4% owners

Renter-occupied 20.6%

Owner-occupied 79.4%

homeownership rate

Warren County 79.4%

Ohio 67.2%

United States 65.2%

Average household size

2.79

Owner-occupied

2.16

Renter-occupied

owner-occupied average size

Warren County 2.79

Ohio 2.5

United States 2.64

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Warren County	Ohio	United States
Total occupied units	92,052	4,863,191	129,227,496
Year moved in
2020 or later	23.1%	22.8%	24.8%
2010 to 2019	41.2%	38.6%	39.6%
2000 to 2009	19.2%	16.5%	16.4%
1999 or earlier	16.5%	22.1%	19.1%
Occupants per room
1.00 or fewer	98.7%	98.5%	96.6%
1.01 to 1.50	0.9%	1.1%	2.2%
1.51 or more	0.4%	0.4%	1.2%
Vehicles availability
No vehicles	3.1%	7.5%	8.4%
1 vehicle	25.4%	34%	33.1%
2 vehicles	42.8%	37.4%	36.6%
3 or more vehicles	28.7%	21.2%	21.9%
House heating fuel used
Gas	58.6%	69.6%	51.4%
Electricity	37.4%	26%	41.3%
Solar	0.1%	0%	0.3%
Fuel oil, kerosene etc	2%	1.7%	3.9%
All other fuels	1.6%	2.2%	2%
No fuel used	0.4%	0.5%	1.2%
Selected characteristics
Lacking complete plumbing	0.1%	0.4%	0.4%
Lacking complete kitchen	0.6%	0.9%	0.8%
No telephone service available	0.5%	0.8%	0.9%

Housing Value

What owner-occupied units are worth

Median home value

$349,400

owner-occupied units

Median value(USD)

Warren County

$349,400

Ohio

$214,800

United States

$332,700

Housing Cost Burden

18.4%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

18.4%

Owners without a mortgage

11.1%

Renters

41.3%

Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.

Financial characteristics

Property value and housing costs

Tenure, crowding, and utilities

	Warren County	Ohio	United States
Property value
Median Value	$349,400	$214,800	$332,700
Under $100,000	4.2%	16.3%	11.4%
$100,000 - $200,000	13%	29.7%	15.8%
$200,000 - $300,000	22.7%	23.3%	17.8%
$300,000 - $500,000	37.1%	21.8%	26.9%
$500,000 - $1,000,000	20.3%	7.7%	20.9%
$1,000,000 and more	2.7%	1.2%	7.1%
Owner-occupied households
With a mortgage	69%	60.6%	60.6%
Without a mortgage	31%	39.4%	39.4%
Median monthly owner costs
With a mortgage	$1,974	$1,517	$1,963
Without a mortgage	$756	$588	$638
Gross rent
Median rent	$1,361	$1,034	$1,413

Education Profile

How educated is the community and how education pays off

Adults with a college degree

45.6%

of adults 25+ with a bachelor's degree or higher

Warren County 45.6%

Ohio 31.5%

United States 35.7%

Adults without a high school diploma

of adults (25+) without a high school diploma

Warren County 5%

Ohio 8.1%

United States 10.4%

School Enrollment

Who is enrolled in school and at what level

School enrollment

61,539

population (age 3+) enrolled in school

Nursery / Preschool

5.9%

K–12

75.8%

College / Undergraduate

14.2%

Graduate / Professional

College-going rate (18-24 yr olds)

34.2%

of 18-24-year-olds in college or graduate school

Warren County

34.2%

Ohio

38.1%

United States

40.9%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Warren County	Ohio	United States
Total enrolled (age 3+)	61,539	2,715,174	80,089,790
Nursery / preschool	5.9%	6%	5.7%
K–12	75.8%	69.7%	67.6%
Kindergarten	5.1%	5.3%	5%
Elementary: Grades 1–4	21.5%	20.8%	19.8%
Elementary: Grades 5–8	23.1%	21.6%	21%
High School: Grades 9–12	26.1%	22.1%	21.7%
College or graduate school	18.3%	24.3%	26.7%
College, undergraduate	14.2%	19.1%	21%
Graduate, professional school	4%	5.2%	5.8%
College-going rate · 18-24 yr olds	34.2%	38.1%	40.9%
School type
Public school	80.5%	80.9%	82%
Private school	19.5%	19.1%	18%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

170,768

population 25 years and over

Total adults (25+)

Less than 9th grade

1.7%

9th-12th, no diploma

3.3%

HS graduate

24.4%

Some college no degree

16.6%

Associates degree

8.5%

Bachelors degree

27.2%

Graduate or professional degree

18.4%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

58% · 42%

9th-12th, no diploma

52.9% · 47.1%

HS graduate

51.4% · 48.6%

Some college no degree

48% · 52%

Associates degree

43.1% · 56.9%

Bachelors degree

52.3% · 47.7%

Graduate or professional degree

48% · 52%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Warren County	Ohio	United States
Population (25+)	170,768	8,162,216	230,807,303
Less than 9th grade	1.7%	2.6%	4.7%
9th–12th, no diploma	3.3%	5.5%	5.7%
High school diploma or GED	24.4%	32.1%	26%
Some college, no degree	16.6%	19.3%	19.1%
Associate's degree	8.5%	9%	8.8%
Bachelor's degree or higher	45.6%	31.5%	35.7%
Bachelor's degree	27.2%	19.3%	21.6%
Graduate or professional	18.4%	12.2%	14.1%
High School or higher	95.1%	91.8%	89.6%

Earnings by education level

percentage as applicable

Median Earnings

$66,900

Median earnings for adults 25+, by level

Less than HS graduate

$33,459

HS graduate

$46,596

Some college or associates

$54,234

Bachelors degree

$80,772

Graduate or professional degree

$102,995

Poverty Rate

2.5%

for ages 25+, with bachelors degree or higher

Less than HS graduate

22.3%

HS graduate

7.9%

Some college or associates

5.9%

Bachelors degree or higher

2.5%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Warren County	Ohio	United States
Median earnings
Population 25+, with earnings	$66,900	$50,614	$52,696
Less than high school graduate	$33,459	$32,025	$32,485
High school graduate (includes equivalency)	$46,596	$39,940	$40,153
Some college or associate's degree	$54,234	$45,998	$47,260
Bachelor's degree	$80,772	$66,950	$70,044
Graduate or professional degree	$102,995	$84,072	$90,720
Poverty rates
Less than high school graduate	22.3%	28.4%	24.2%
High school graduate (includes equivalency)	7.9%	14.2%	14.4%
Some college or associate's degree	5.9%	10.5%	9.8%
Bachelor's degree or higher	2.5%	4.2%	4.5%

Insights for Warren County, by topic

Income By year By race By age By gender

Population By year By race By age By gender

About Neilsberg Research

Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.

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