Fairfield County, Ohio Population 2026

Updated April 2026 · US Census ACS 2023 5-Year Estimates · 20th-largest in Ohio

The population of Fairfield County, Ohio is 161,289 as of the 2023 American Community Survey, making it the 20th-largest county in Ohio. The median household income is $87,069, the median home value is $272,200, and the median age is 39.5.

The population of Fairfield County has grown 14.6% since 2010 (146,408 → 167,762), a +0.98% annualized rate.

Fairfield County within Ohio · Source: US Census TIGER/Line via us-atlas

161,289

Population

+0.98%

Annual growth

320

People / sq mi

$87,069

Median Income

$272,200

Median Home Value

Fairfield County covers 504 sq mi of land at 319.8 people per square mile.

About Fairfield County, OH

Fairfield County is a county in Ohio with a population of 161,289. It ranks #20 among counties in Ohio by population. The median age is 39.5, in line with the national median. The population is 50.0% male and 50.0% female.

The median household income in Fairfield County is $87,069, above the US median of $74,580. 5.2% of residents live below the federal poverty level. Home values sit at a median of $272,200, with monthly rent averaging $1,114. The homeownership rate of 74.2% is higher than the national rate of 64.8%.

Educational attainment in Fairfield County reflects 31.9% of adults 25 and older holding a bachelor's degree or higher, below the national average of 34.3%. Roughly 12.2% of workers primarily work from home, similar to the national work-from-home rate of 14.2%. The average commute is 27.7 minutes each way.

Fairfield County Population History (2010-2024)

The county of Fairfield County had a population of 146,408 in 2010 and 167,762 in 2024, a 14.6% growth over 14 years. The peak was 167,762 in 2024. Average annual growth rate: 0.98%.

167,762

Population (2024)

146,408

Population (2010)

167,762

Peak (2024)

0.98%

Avg Annual Growth

Year	Population	Change	Annual %	Source
2010	146,408	-	-	estimate
2011	147,180	+772	+0.53%	estimate
2012	147,314	+134	+0.09%	estimate
2013	148,820	+1,506	+1.02%	estimate
2014	150,400	+1,580	+1.06%	estimate
2015	151,310	+910	+0.61%	estimate
2016	152,829	+1,519	+1.00%	estimate
2017	154,718	+1,889	+1.24%	estimate
2018	156,062	+1,344	+0.87%	estimate
2019	157,703	+1,641	+1.05%	estimate
2020	159,464	+1,761	+1.12%	estimate
2021	161,245	+1,781	+1.12%	estimate
2022	163,166	+1,921	+1.19%	estimate
2023	165,630	+2,464	+1.51%	estimate
2024	167,762	+2,132	+1.29%	estimate

Race & Ethnicity

White	82.6%
Black or African American	8.9%
Asian	0.0%
Hispanic or Latino (any race)	1.1%
Two or More Races	0.0%

Age & Sex

39.5

Median Age

50.0%

Female

50.0%

Male

16.4%

Age 65+

Age Distribution

Under 5

5.8%

5–9

6.3%

10–14

7.4%

15–19

6.6%

20–24

5.9%

25–34

12.0%

35–44

13.5%

45–54

13.1%

55–59

6.8%

60–64

6.3%

65–74

9.7%

75–84

4.8%

85+

1.9%

Children (under 15): 19.5% · Seniors (65+): 16.4%

Income & Poverty

Median household income	$87,069+$17,389 vs state
Mean household income	$106,689
Per-capita income	$40,561
Poverty rate	5.2%-4.0% vs state
Unemployment rate	2.3%
Employment-to-population	61.8%

Top Industries by Employment

Professional & business services

23.8%

Finance & real estate

9.6%

Manufacturing

9.0%

Information

8.1%

Education & health care

8.0%

Construction

7.8%

Retail trade

7.3%

Public administration

6.0%

The largest employment sector in Fairfield County is professional & business services, accounting for 23.8% of workers.

How residents commute

0.2%

Drive alone

1.2%

Carpool

78.6%

Public transit

12.2%

Work from home

27.7 min

Avg commute

Housing

$272,200+$73,000 vs state

Median home value

$1,114

Median rent

74.2%

Homeownership rate

63,397

Total housing units

94.6%

Occupied

5.4%

Vacant

25.8%

Renter-occupied

Social & access

93.7%

With health insurance

95.7%

With broadband internet

17.9%

Foreign-born

7.4%

Veterans (18+)

13.8%

With a disability

95.1%

Speak language other than English at home

Education

94.0%

High School+

31.9%

Bachelor's+

Largest cities in Ohio

Columbus (906,480)Cleveland (367,523)Cincinnati (309,595)Toledo (268,461)Akron (189,526)Dayton (136,741)Parma (80,131)Canton (70,105)Lorain (65,207)Hamilton (63,124)All Ohio cities →

Other counties in Ohio

Franklin County (1,321,635)Cuyahoga County (1,249,418)Hamilton County (827,878)Summit County (538,087)Montgomery County (535,528)Lucas County (428,748)Butler County (389,910)Stark County (373,764)Lorain County (314,588)Warren County (246,364)All Ohio counties →

Part of Ohio

Ohio demographic profile All Ohio data →

Metro areas in Ohio

Cincinnati (2,255,257)Cleveland (2,171,978)Columbus (2,151,847)Dayton (813,608)Akron (699,508)Toledo (602,977)Youngstown (428,430)Canton (400,495)All US metros →

County rankings

US Counties by Population Richest US Counties by Median Household Income Expensive US Counties by Home Value Educated US Counties Counties With Highest Poverty Rates Youngest US Counties by Median Age Oldest US Counties by Median Age Cheapest US Counties by Median Home Value Racially Diverse US Counties Counties With Largest Hispanic Population All rankings →

Frequently Asked Questions

Fairfield County, Ohio has a population of 161,289 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 20th-largest county in Ohio. Population density is 320 people per square mile.

The population of Fairfield County has grown 14.6% since 2010 (146,408 → 167,762), a +0.98% annualized rate.

The median household income in Fairfield County, Ohio is $87,069, with mean (average) household income of $106,689 and per-capita income of $40,561. 5.2% of residents live below the federal poverty level.

In Fairfield County, the largest racial and ethnic groups are White (82.6%), Black or African American (8.9%), Hispanic or Latino (1.1%). Figures are from the US Census Bureau's 2023 ACS 5-year estimates and reflect self-reported responses.

The median age in Fairfield County, Ohio is 39.5 years. Residents are 50.0% female and 50.0% male.

The median home value in Fairfield County is $272,200 and median monthly rent is $1,114. 74.2% of occupied housing units are owner-occupied. The county has 63,397 total housing units, 5.4% of which are vacant.

The largest employment sector in Fairfield County, Ohio is professional, scientific, and management services, employing 23.8% of workers. The unemployment rate is 2.3%.

Columbus is among the largest cities associated with Fairfield County, Ohio, with a population of 906,480.