Mercer County, Ohio Population 2024

42,454

Mercer County, Ohio's estimated 2024 population is 42,454 with a growth rate of 0.04% in the past year according to the most recent United States census data. Mercer County, Ohio is the 57th largest county in Ohio. The 2010 population was 40,791 and has seen a growth of 4.08% since that time.

Note: data after 2022 is projected based on recent change
Year
Population
Growth
Change
202942,529150.04%
202842,514150.04%
202742,499150.04%
202642,484150.04%
202542,469150.04%
202442,454150.04%
202342,439150.04%
202242,424320.08%
202142,392-150-0.35%
202042,5421,2873.12%
201941,2552690.66%
201840,986970.24%
201740,8891210.3%
201640,768330.08%
201540,735-4-0.01%
201440,7391160.29%
201340,623-87-0.21%
201240,710-10-0.02%
201140,720-71-0.17%
201040,79100%
199039,4431,1092.89%
198038,3343,0698.7%
197035,2652,7068.31%
196032,5594,24815%
195028,3112,0557.83%
194026,2561,1604.62%
193025,096-1,776-6.61%
192026,872-664-2.41%
191027,536-485-1.73%
190028,0218012.94%
189027,2205,41224.82%
188021,8084,55426.39%
187017,2543,15022.33%
186014,1046,39282.88%
18507,712-565-6.83%
18408,2777,167645.68%
18301,1101,0151068.42%
182095-42,434-99.78%
2024 Growth Rate
0.04% (15)
County Website
Mercer County
State
Ohio
County Seat
Celina
2020 Population
42,542
Area
462 mi²
Density
92 people/mi²
Growth Since 2020
-0.21% (-88)
Founded
January 2, 1824

Population by Race

Race
Population
Percentage (of total)
White40,61895.98%
Two or more races8972.12%
Asian2590.61%
Native Hawaiian or Pacific Islander2300.54%
Black or African American2160.51%
Other race840.2%
Native American170.04%

White

Two or more races

Asian

Native Hawaiian or Pacific Islander

Black or African American

Other race

Native American

Mercer County, Ohio Population by Race

Mercer County, Ohio Population Pyramid 2024

Mercer County, Ohio Median Age

39.4

Total

37.9

Male

41.1

Female

Mercer County, Ohio Adults

There are 31,461 adults, (7,833 of whom are seniors) in Mercer County, Ohio.

Mercer County, Ohio Age Dependency

79.1

Age Dependency Ratio

33.2

Old Age Dependency Ratio

46

Child Dependency Ratio

Mercer County, Ohio Sex Ratio

Female20,85449.28%
Male21,46750.72%

Mercer County, Ohio Population by Age

Mercer County, Ohio Renter vs Owner Occupied by Household Type

Household Type
Count
Average Size
Owner
Renter
All16,0222.6178.821.2
Married9,2233.390.59.5
Non Family5,3741.266337
Female8733.2355.744.3
Male5523.1372.527.5

3.21

Average Family Size

2.61

Average Household Size

78.8%

Rate of Home Ownership

Married

Male

Female

NonFamily

owner

renter

Mercer County, Ohio Households and Families

Male

Female

Education Attained
Count
Percentage
9th to 12th Grade1,6365.84%
Associates Degree3,56212.71%
Bachelors Degree3,83913.7%
Graduate Degree1,8696.67%
High School Graduate12,35044.06%
Less Than 9th Grade3221.15%
Some College4,45115.88%

Less Than 9th Grade

9th to 12th Grade

High School Graduate

Some College

Associates Degree

Bachelors Degree

Graduate Degree

Mercer County, Ohio Educational Attainment by Sex (over 25)

Mercer County, Ohio Educational Attainment by Race

High School Graduation Rate

Bachelors Rate

Race
Total
High School
Bachelors
White26,75724,9395,301
2+ Races504458163
Hispanic42737137
Asian175175175
Black15912121
Other Race555514
Islander545418
Native American17170

The highest rate of high school graduation is among native american people with a rate of 100%.

The highest rate of bachelors degrees is among asian people with a rate of 100%.

Mercer County, Ohio Educational Attainment by Race

All

Male

Female

Name
Average
Male
Female
Bachelors Degree$54,775$79,720$47,449
Graduate Degree$66,832$67,174$65,521
High School Graduate$41,009$51,193$29,141
Less Than 9th Grade$25,553$28,571$21,331
Overall$46,712$57,134$37,135
Some College$46,820$60,196$36,847

$46,712

Average Earnings

$57,134

Average Male

$37,135

Average Female

Mercer County, Ohio Earnings by Educational Attainment

Mercer County, Ohio Language by Age

Only English

Spanish

Other Indo-European Languages

Asian and Pacific Island Languages

Other Languages

Mercer County, Ohio Language

97.94% of Mercer County, Ohio residents speak only English, while 2.06% speak other languages. The non-English language spoken by the largest group is Asian and Pacific Island languages, which is spoken by 0.74% of the population.

Mercer County, Ohio Language

Mercer County, Ohio Poverty by Race

rate

Name
Total
In Poverty
Poverty Rate
White39,3992,3135.87%
Multiple79516020.13%
Black1886534.57%
Hispanic728466.32%
Islander2113014.22%
Asian222177.66%
Native17635.29%

6.36%

Overall Poverty Rate

5.94%

Male Poverty Rate

6.79%

Female Poverty Rate

Poverty in Mercer County, Ohio

The race most likely to be in poverty in Mercer County, Ohio is Native, with 35.29% below the poverty level.

The race least likely to be in poverty in Mercer County, Ohio is White, with 5.87% below the poverty level.

The poverty rate among those that worked full-time for the past 12 months was 0.99%. Among those working part-time, it was 8.89%, and for those that did not work, the poverty rate was 9.9%.

Mercer County, Ohio Poverty

rate

Rate
Poverty
Less Than 9th Grade15.66%
High School6.29%
Some College4.05%
Bachelors or Greater2.03%

Mercer County, Ohio Poverty Rate by Education

rate

Rate
Poverty
Female Unemployed34.6%
Male Unemployed10.21%
Female Employed3.3%
Male Employed2.31%

Mercer County, Ohio Poverty Rate by Employment Status and Sex

Mercer County, Ohio Income by Household Type

Households

Families

MarriedFamilies

NonFamilies

Name
Median
Mean
Families$95,357$102,844
Households$73,278$87,555
Married Families$102,674$-999,999,999
Non Families$44,412$54,601

mean

median

Income by Household Type

Mercer County, Ohio Marital Status

Married

Widowed

Divorced

Separated

NeverMarried

Marriage Rates

57.1%

Overall Marriage Rate

56.7%

Male Marriage Rate

57.5%

Female Marriage Rate

Mercer County, Ohio Married by Age and Sex

male

female

Mercer County, Ohio Marriage

The age group where males are most likely to be married is 55-64, while the female age group most likely to be married is 35-44.

Mercer County, Ohio Marital Status by Race

Married

Widowed

Divorced

Separated

NeverMarried

Mercer County, Ohio Marital Status

Second Gulf War

First Gulf War

Vietnam

Korea

World War II

1,980

Number of Veterans

1,923

Male Veterans

57

Female Veterans

War
Veterans
Vietnam784
First Gulf War277
Korea264
Second Gulf War140
World War II29

Mercer County, Ohio Veterans by War

count

Age Group
Veterans
75+766
65 to 74487
55 to 64367
35 to 54285
18 to 3475

Mercer County, Ohio Veterans by Age

count

Name
Veterans
% of Total
White1,9306.37%
Hispanic448.16%
2+ Races203.75%
Black1710.49%
Other Race1315.48%

Mercer County, Ohio Veterans by Race

Mercer County, Ohio Veterans by Education

Less Than 9th Grade

High School Graduate

Some College

Bachelors or Greater

5.17%

Veteran Poverty Rate

32.29%

Veteran Disability Rate

Mercer County, Ohio Veterans by Education

LaborForceParticipation

68.4%

Labor Force Participation

66.9%

Employment Rate

2%

Unemployment Rate

Mercer County, Ohio Employment by Age

LaborForceParticipation

Mercer County, Ohio Employment by Race

LaborForceParticipation

Mercer County, Ohio Employment by Education

Origin of Non-Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

Non citizens include legal permanent residents (green card holders), international students, temporary workers, humanitarian migrants, and illegal immigrants.

Origin of Naturalized Citizens

Europe

Asia

Africa

Oceania

Latin America

North America

87.56%

Born in Mercer County, Ohio

98.59%

Native Born

1.41%

Foreign Born

1.08%

Non Citizen

0.33%

Naturalized

Place of Birth

98.59% of Mercer County, Ohio residents were born in the United States, with 87.56% having been born in Ohio. 1.08% of residents are not US citizens. Of those not born in the United States, the largest percentage are from Asia.

Mercer County, Ohio Place of Birth

Sources