Mercer County Population

1840–2026

57,454

2026 projection

3.5% since 2020 (decrease)

020K40K60K80K1840186018801900192019401960198020002020

Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.

Use the left and right arrow keys to inspect population observations.

Population by year

Population estimates for Mercer County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202657,454-490.09%
202557,503-490.09%
202457,552-5380.93%
202358,090-5270.90%
202258,617-5670.96%
202159,184-3440.58%
202059,528+7051.20%
201958,823-4050.68%
201859,228-6751.13%
201759,903-7351.21%

Showing 10 of 33 years.

Mercer County Demographics

43.5median age

Median age

Female45.2 yrs
Male41.8 yrs

Adults

46,359
13,393 seniors (65+) · 29% of adults32,966 other adults

Sex

Female 51.7% · 30,297Male 48.3% · 28,266

Population by age

MaleFemale85+ years, male: 45585+ years, female: 1,21580–84 years, male: 54480–84 years, female: 76475–79 years, male: 1,40875–79 years, female: 1,25570–74 years, male: 1,60470–74 years, female: 1,97165–69 years, male: 1,85165–69 years, female: 2,32660–64 years, male: 1,82560–64 years, female: 2,01055–59 years, male: 1,73655–59 years, female: 1,91050–54 years, male: 1,80750–54 years, female: 1,91845–49 years, male: 1,76545–49 years, female: 1,84740–44 years, male: 1,69240–44 years, female: 1,86635–39 years, male: 1,30935–39 years, female: 1,71530–34 years, male: 1,67530–34 years, female: 1,66825–29 years, male: 1,68525–29 years, female: 1,74620–24 years, male: 1,87520–24 years, female: 1,53815–19 years, male: 1,73615–19 years, female: 1,56110–14 years, male: 1,72410–14 years, female: 1,9335–9 years, male: 2,0215–9 years, female: 1,5810–4 years, male: 1,5540–4 years, female: 1,47385+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–41K1K2K2K

Hover or tap an age group to see exact counts. Use the up and down arrow keys to inspect age groups.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101

Race and ethnicity

Tap a square or a group below to highlight it.

Each square is about 1% of residents (roughly 586 people).

Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.

U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002

Mercer County Income

$53,210median household income

Median household income

$53,210

Half of households earn more, half earn less

Median earnings

$42,634

Typical yearly pay for a worker 25 or older.

Poverty rate

16.5%

About 1 in 6 residents

U.S. Census Bureau, 2024 ACS 5-year estimates · Tables S1901, S1501, S1701

Mercer County Marital Status

48% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married48%50%46%
Never married26%31%22%
Divorced15%13%16%
Widowed10%5%16%
Separated1%<1%1%

U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201

Sources

8 sources, all from the U.S. Census Bureau

Population

American Community Survey, 2024 5-year