Decatur Population

1840–2026

25,213

2026 projection

1.2% since 2020 (increase)

05K10K15K20K25K30K1840186018801900192019401960198020002020

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 Decatur. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202625,213-630.25%
202525,276+6102.47%
202424,666+430.17%
202324,623+1480.60%
202224,475+890.36%
202124,386-5312.13%
202024,917-7953.09%
201925,712+390.15%
201825,673+1,8497.76%
201723,824+9234.03%

Showing 10 of 33 years.

Decatur Demographics

39.8median age

Median age

Female41.8 yrs
Male38 yrs

Adults

17,768
3,597 seniors · 20%14,171 other adults

Sex

Female 52.1% · 12,778Male 47.9% · 11,740

Population by age

MaleFemale85+ years, male: 5785+ years, female: 44980–84 years, male: 16780–84 years, female: 20975–79 years, male: 22875–79 years, female: 35570–74 years, male: 47970–74 years, female: 44665–69 years, male: 50865–69 years, female: 69960–64 years, male: 88560–64 years, female: 77255–59 years, male: 73555–59 years, female: 58350–54 years, male: 92350–54 years, female: 1,09245–49 years, male: 90245–49 years, female: 1,23740–44 years, male: 54040–44 years, female: 94535–39 years, male: 85835–39 years, female: 70430–34 years, male: 69030–34 years, female: 65025–29 years, male: 45625–29 years, female: 45620–24 years, male: 31420–24 years, female: 61615–19 years, male: 90715–19 years, female: 97910–14 years, male: 1,12610–14 years, female: 1,0575–9 years, male: 9355–9 years, female: 9720–4 years, male: 1,0300–4 years, female: 55785+80–8475–7970–7465–6960–6455–5950–5445–4940–4435–3930–3425–2920–2415–1910–145–90–45005001K1K

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 245 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

Decatur Income

$139,397median household income

Median household income

$139,397

Half of households earn more, half earn less

Median earnings

$101,670

Typical yearly pay for a worker 25 or older.

Poverty rate

6.2%

About 1 in 16 residents

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

Decatur Marital Status

54% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married54%60%49%
Never married31%29%32%
Divorced9%6%12%
Widowed5%3%6%
Separated1%1%1%

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

Sources

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

Population

American Community Survey, 2024 5-year