Oak Forest Population

1950–2026

26,656

2026 projection

2.6% since 2020 (decrease)

05K10K15K20K25K30K19501960197019801990200020102020

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 Oak Forest. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202626,656-1360.51%
202526,792-420.16%
202426,834+3981.51%
202326,436-610.23%
202226,497-3801.41%
202126,877-5011.83%
202027,378+2000.74%
201927,178-2100.77%
201827,388-2740.99%
201727,662-2420.87%

Showing 10 of 23 years.

Oak Forest Demographics

40.5median age

Median age

Female42.5 yrs
Male38.8 yrs

Adults

21,122
4,495 seniors · 21%16,627 other adults

Sex

Female 50.7% · 13,579Male 49.3% · 13,226

Population by age

MaleFemale85+ years, male: 8085+ years, female: 10380–84 years, male: 20680–84 years, female: 29475–79 years, male: 38775–79 years, female: 57270–74 years, male: 69370–74 years, female: 71165–69 years, male: 66765–69 years, female: 78260–64 years, male: 87360–64 years, female: 87755–59 years, male: 97455–59 years, female: 1,01350–54 years, male: 87750–54 years, female: 1,17945–49 years, male: 85845–49 years, female: 80940–44 years, male: 63640–44 years, female: 1,00535–39 years, male: 1,24235–39 years, female: 1,21730–34 years, male: 88630–34 years, female: 72525–29 years, male: 1,00125–29 years, female: 43820–24 years, male: 71320–24 years, female: 55915–19 years, male: 81715–19 years, female: 1,08010–14 years, male: 79510–14 years, female: 7735–9 years, male: 8425–9 years, female: 7970–4 years, male: 6790–4 years, female: 64585+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 268 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

Oak Forest Income

$91,990median household income

Median household income

$91,990

Half of households earn more, half earn less

Median earnings

$56,441

Typical yearly pay for a worker 25 or older.

Poverty rate

6.5%

About 1 in 15 residents

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

Oak Forest 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%56%53%
Never married31%34%27%
Divorced10%7%13%
Widowed4%2%6%
Separated1%1%2%

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