Westerville, OH

City in OH, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

38,645

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

Median Age

40.7

years ∙ half population younger than 40.7, half older

Diversity Index

33.8%

chance two random people differ in race and ethnicity

Nativity

5.9%

foreign-born population

94.1%Native

5.9% Foreign-born

Geographic Context

Location, size, and surroundings

About

Westerville is a city within Delaware and Franklin counties, Ohio, United States.

Location

City in OH, US

Co-ordinates

DEC40.123435° N, 82.913324° W

DMS40° 07′ 24.37″ N, 82° 54′ 47.97″ W

Population Density & area

3,067/sq mi (1,185/km²)

Total Area

12.7 sq mi (33 km²)

Land Area

12.6 sq mi (32.6 km²) · 98.9%

Water Area

0.1 sq mi (0.4 km²) · 1.1%

Demographics & Living

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

Population Composition

Key characteristics of the population

Sex Distribution

47.3% male

Male 47.3%

Female 52.7%

males per 100 females

Westerville 89.7

Ohio 97.3

United States 98

Nativity

5.9%

foreign-born population

94.1%Native

5.9% Foreign-born

% Foreign-born

Westerville 5.9%

Ohio 5.2%

United States 14.1%

Age Distribution

How the population is spread across age groups

Median Age

40.7

years ∙ half population younger than 40.7, half older

Westerville

40.7

Ohio

39.7

United States

38.9

Dependency ratio

78.9

dependents per 100 working-age adults

Westerville 78.9

Ohio 67.4

United States 64.4

AGE DISTRIBUTION

Distribution of age group

Median age

	Westerville	Ohio	United States
Age Group
Children (Under 18)	22.6%	22%	22%
Working age (18-64)	55.9%	59.7%	60.8%
Senior (65+)	21.5%	18.3%	17.2%
Dependency ratio
Total dependency ratio	78.9	67.4	64.4
Child dependency ratio	40.4	36.9	36.1
Old-age dependency ratio	38.4	30.6	28.3

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

80.7%

Black

8.5%

Asian

2.8%

Hispanic

2.8%

Other

5.2%

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

33.8%

chance two random people differ in race and ethnicity

Westerville 33.8%

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 Westerville population

	Westerville	Ohio	United States
Hispanic or Latino	2.8%	4.8%	19.3%
Mexican	1%	2%	11.3%
Puerto Rican	1.1%	1.2%	1.8%
Cuban	0%	0.1%	0.8%
Other Hispanic / Latino	0.6%	1.4%	5.5%
Not Hispanic or Latino	97.2%	95.2%	80.7%
One race	92.3%	90.9%	76.4%
White	80.7%	75.8%	57.4%
Black or African American	8.5%	12%	11.9%
American Indian and Alaska Native	0%	0.1%	0.5%
Asian	2.8%	2.5%	5.9%
Native Hawaiian and Other Pacific Islander	0%	0%	0.2%
Some Other Race	0.3%	0.4%	0.6%
Two or more races (Multiracial)	4.9%	4.3%	4.3%

Household & Families Composition

Household size, type, and family structure

Household structure

69.8% family

Family 69.8%

Non family 30.2%

% family households

Westerville 69.8%

Ohio 61.2%

United States 64.2%

Average household size

2.43

persons per household

Westerville

2.43

Ohio

2.37

United States

2.53

Household & Family COMPOSITION

Households

Percentage of Westerville population

	Westerville	Ohio	United States
Total households	15,208	4,863,191	129,227,496
Average houshold size	2.43	2.37	2.53
Family households	10,620	2,976,515	82,990,528
Average family size	2.95	3.01	3.14
Married couple family	8,621	2,158,670	60,637,388
Other families	1,999	817,845	22,353,140
Male householder	790	235,478	6,572,819
Female householder	1,209	582,367	15,780,321
Non-family households	4,588	1,886,676	46,236,968
One-person households	3,924	1,556,005	37,140,836
Male householder	1,160	716,929	16,871,444
Senior (65+) living alone	463	227,267	5,225,110
Female householder	2,764	839,076	20,269,392
Senior (65+) living alone	1,914	427,631	10,089,070
Other living arrangements	664	330,671	9,096,132

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

15,912

housing units

Westerville 15,912

Ohio 5,292,391

United States 143,775,355

Occupancy status

95.6% occupied

Occupied 95.6%

Vacant 4.4%

vacancy rate

Westerville 4.4%

Ohio 8.1%

United States 10.1%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

75.6%

Single family houses

75.6%

Apartments in multi-unit structures

24.5%

Mobile homes

Boat, RV, van, etc

Median Year Built

1982

Half of houses were built before 1982, and half after.

Historic ∙ 1939 or earlier

6.6%

Postwar & mid-century ∙ 1940 - 1969

13.9%

Late 20th century ∙ 1970 - 1999

59.2%

Modern ∙ 2000 or later

20.3%

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

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Westerville	Ohio	United States
Rooms per unit
Median rooms	6.9	5.9	5.5
1–3 rooms	10%	10.7%	15.1%
4–6 rooms	34.2%	50.1%	51.6%
7+ rooms	55.8%	39.3%	33.4%
Bedrooms
No bedroom / studio	1%	1.7%	2.9%
1 bedroom	9.7%	9.4%	10.9%
2 bedrooms	22%	25.4%	25%
3 bedrooms	27.4%	41.6%	38.7%
4+ bedrooms	39.9%	21.9%	22.4%
At a glance
Median year built	1982	1971	1981
Total housing units	15,912	5,292,391	143,775,355

Occupancy Profile

Who is inside and how they use it

Homeownership

72.5% owners

Renter-occupied 27.5%

Owner-occupied 72.5%

homeownership rate

Westerville 72.5%

Ohio 67.2%

United States 65.2%

Average household size

2.6

Owner-occupied

2.01

Renter-occupied

owner-occupied average size

Westerville 2.6

Ohio 2.5

United States 2.64

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Westerville	Ohio	United States
Total occupied units	15,208	4,863,191	129,227,496
Year moved in
2020 or later	19.4%	22.8%	24.8%
2010 to 2019	39.9%	38.6%	39.6%
2000 to 2009	17.2%	16.5%	16.4%
1999 or earlier	23.4%	22.1%	19.1%
Occupants per room
1.00 or fewer	99.3%	98.5%	96.6%
1.01 to 1.50	0.7%	1.1%	2.2%
1.51 or more	0%	0.4%	1.2%
Vehicles availability
No vehicles	5.7%	7.5%	8.4%
1 vehicle	28.9%	34%	33.1%
2 vehicles	49.3%	37.4%	36.6%
3 or more vehicles	16.1%	21.2%	21.9%
House heating fuel used
Gas	71.9%	69.6%	51.4%
Electricity	27.2%	26%	41.3%
Solar	0%	0%	0.3%
Fuel oil, kerosene etc	0%	1.7%	3.9%
All other fuels	0.7%	2.2%	2%
No fuel used	0.2%	0.5%	1.2%
Selected characteristics
Lacking complete plumbing	0.2%	0.4%	0.4%
Lacking complete kitchen	1.9%	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

$374,500

owner-occupied units

Median value(USD)

Westerville

$374,500

Ohio

$214,800

United States

$332,700

Housing Cost Burden

17.1%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

17.1%

Owners without a mortgage

12.1%

Renters

51.2%

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

	Westerville	Ohio	United States
Property value
Median Value	$374,500	$214,800	$332,700
Under $100,000	1.3%	16.3%	11.4%
$100,000 - $200,000	3.3%	29.7%	15.8%
$200,000 - $300,000	21.9%	23.3%	17.8%
$300,000 - $500,000	60.2%	21.8%	26.9%
$500,000 - $1,000,000	13.2%	7.7%	20.9%
$1,000,000 and more	0%	1.2%	7.1%
Owner-occupied households
With a mortgage	68.2%	60.6%	60.6%
Without a mortgage	31.8%	39.4%	39.4%
Median monthly owner costs
With a mortgage	$2,120	$1,517	$1,963
Without a mortgage	$968	$588	$638
Gross rent
Median rent	$1,364	$1,034	$1,413

Education Profile

How educated is the community and how education pays off

Adults with a college degree

57.9%

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

Westerville 57.9%

Ohio 31.5%

United States 35.7%

Adults without a high school diploma

2.6%

of adults (25+) without a high school diploma

Westerville 2.6%

Ohio 8.1%

United States 10.4%

School Enrollment

Who is enrolled in school and at what level

School enrollment

10,103

population (age 3+) enrolled in school

Nursery / Preschool

7.7%

K–12

59.6%

College / Undergraduate

26.7%

Graduate / Professional

6.1%

College-going rate (18-24 yr olds)

64.5%

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

Westerville

64.5%

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

	Westerville	Ohio	United States
Total enrolled (age 3+)	10,103	2,715,174	80,089,790
Nursery / preschool	7.7%	6%	5.7%
K–12	59.6%	69.7%	67.6%
Kindergarten	5.6%	5.3%	5%
Elementary: Grades 1–4	16.2%	20.8%	19.8%
Elementary: Grades 5–8	18.8%	21.6%	21%
High School: Grades 9–12	19%	22.1%	21.7%
College or graduate school	32.7%	24.3%	26.7%
College, undergraduate	26.7%	19.1%	21%
Graduate, professional school	6.1%	5.2%	5.8%
College-going rate · 18-24 yr olds	64.5%	38.1%	40.9%
School type
Public school	71.6%	80.9%	82%
Private school	28.4%	19.1%	18%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

26,750

population 25 years and over

Total adults (25+)

Less than 9th grade

0.8%

9th-12th, no diploma

1.8%

HS graduate

15.3%

Some college no degree

16.4%

Associates degree

7.8%

Bachelors degree

34%

Graduate or professional degree

24%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

40.8% · 59.2%

9th-12th, no diploma

39.7% · 60.3%

HS graduate

50.8% · 49.2%

Some college no degree

45.9% · 54.1%

Associates degree

34.9% · 65.1%

Bachelors degree

49% · 51%

Graduate or professional degree

46.8% · 53.2%

Educational Attainment Overview

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

Highest credential completed · adults 25+

	Westerville	Ohio	United States
Population (25+)	26,750	8,162,216	230,807,303
Less than 9th grade	0.8%	2.6%	4.7%
9th–12th, no diploma	1.8%	5.5%	5.7%
High school diploma or GED	15.3%	32.1%	26%
Some college, no degree	16.4%	19.3%	19.1%
Associate's degree	7.8%	9%	8.8%
Bachelor's degree or higher	57.9%	31.5%	35.7%
Bachelor's degree	34%	19.3%	21.6%
Graduate or professional	24%	12.2%	14.1%
High School or higher	97.4%	91.8%	89.6%

Earnings by education level

percentage as applicable

Median Earnings

$73,592

Median earnings for adults 25+, by level

Less than HS graduate

$27,550

HS graduate

$50,224

Some college or associates

$55,527

Bachelors degree

$77,842

Graduate or professional degree

$94,048

Poverty Rate

1.5%

for ages 25+, with bachelors degree or higher

Less than HS graduate

30%

HS graduate

15.7%

Some college or associates

4.6%

Bachelors degree or higher

1.5%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Westerville	Ohio	United States
Median earnings
Population 25+, with earnings	$73,592	$50,614	$52,696
Less than high school graduate	$27,550	$32,025	$32,485
High school graduate (includes equivalency)	$50,224	$39,940	$40,153
Some college or associate's degree	$55,527	$45,998	$47,260
Bachelor's degree	$77,842	$66,950	$70,044
Graduate or professional degree	$94,048	$84,072	$90,720
Poverty rates
Less than high school graduate	30%	28.4%	24.2%
High school graduate (includes equivalency)	15.7%	14.2%	14.4%
Some college or associate's degree	4.6%	10.5%	9.8%
Bachelor's degree or higher	1.5%	4.2%	4.5%

Insights for Westerville, 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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