Union County Population

1850–2026

271.64K

2026 projection

13.4% since 2020 (increase)

050K100K150K200K250K300K186018801900192019401960198020002020

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 Union County. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
2026271,644+3,9701.48%
2025267,674+3,9701.51%
2024263,704+6,2302.42%
2023257,474+7,8593.15%
2022249,615+5,1562.11%
2021244,459+4,8442.02%
2020239,615-4130.17%
2019240,028+3,8111.61%
2018236,217+4,6922.03%
2017231,525+5,0242.22%

Showing 10 of 32 years.

Union County Demographics

39.2median age

Median age

Female39.9 yrs
Male38.5 yrs

Adults

186,726
33,972 seniors (65+) · 18% of adults152,754 other adults

Sex

Female 50.3% · 126,332Male 49.7% · 124,626

Population by age

MaleFemale85+ years, male: 1,06785+ years, female: 1,97780–84 years, male: 1,60180–84 years, female: 2,20275–79 years, male: 2,99475–79 years, female: 3,55570–74 years, male: 4,50870–74 years, female: 5,28065–69 years, male: 5,10265–69 years, female: 5,68660–64 years, male: 7,68360–64 years, female: 7,50255–59 years, male: 8,38955–59 years, female: 7,91350–54 years, male: 10,12350–54 years, female: 9,75245–49 years, male: 9,45845–49 years, female: 9,57440–44 years, male: 8,91340–44 years, female: 9,56035–39 years, male: 7,18935–39 years, female: 7,86830–34 years, male: 6,25330–34 years, female: 6,64325–29 years, male: 6,07025–29 years, female: 6,06620–24 years, male: 8,18020–24 years, female: 7,64715–19 years, male: 10,94415–19 years, female: 10,36910–14 years, male: 10,89510–14 years, female: 9,4565–9 years, male: 8,2135–9 years, female: 8,7410–4 years, male: 7,0440–4 years, female: 6,54185+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45K5K10K10K

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 2,510 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

Union County Income

$102,900median household income

Median household income

$102,900

Half of households earn more, half earn less

Median earnings

$57,655

Typical yearly pay for a worker 25 or older.

Poverty rate

7.7%

About 1 in 13 residents

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

Union County Marital Status

59% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married59%61%57%
Never married28%30%26%
Divorced8%6%9%
Widowed4%2%7%
Separated1%1%2%

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