Mount Prospect Population

1920–2026

55,092

2026 projection

2.8% since 2020 (decrease)

010K20K30K40K50K60K192019401960198020002020

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 Mount Prospect. Annual change is shown as a percentage. Growth is the total change since the preceding observation.
202655,092-3030.55%
202555,395-950.17%
202455,490+7181.31%
202354,772-1180.21%
202254,890-7701.38%
202155,660-1,0391.83%
202056,699+3,0405.67%
201953,659-4420.82%
201854,101-5551.02%
201754,656-4860.88%

Showing 10 of 26 years.

Mount Prospect Demographics

41.1median age

Median age

Female41.8 yrs
Male39.9 yrs

Adults

42,767
10,371 seniors · 24%32,396 other adults

Sex

Female 50.9% · 28,219Male 49.1% · 27,253

Population by age

MaleFemale85+ years, male: 65685+ years, female: 78180–84 years, male: 50880–84 years, female: 55875–79 years, male: 91175–79 years, female: 1,23870–74 years, male: 1,25070–74 years, female: 1,34765–69 years, male: 1,53865–69 years, female: 1,58460–64 years, male: 1,40860–64 years, female: 2,36055–59 years, male: 1,91155–59 years, female: 1,49850–54 years, male: 1,56650–54 years, female: 1,47345–49 years, male: 1,89945–49 years, female: 2,07240–44 years, male: 1,91840–44 years, female: 2,26935–39 years, male: 1,73235–39 years, female: 1,62730–34 years, male: 2,03030–34 years, female: 1,84225–29 years, male: 1,79625–29 years, female: 1,74720–24 years, male: 1,13820–24 years, female: 91715–19 years, male: 1,80315–19 years, female: 1,65410–14 years, male: 1,94810–14 years, female: 2,1685–9 years, male: 1,5935–9 years, female: 1,6510–4 years, male: 1,6480–4 years, female: 1,43385+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 555 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

Mount Prospect Income

$101,720median household income

Median household income

$101,720

Half of households earn more, half earn less

Median earnings

$60,216

Typical yearly pay for a worker 25 or older.

Poverty rate

6.6%

About 1 in 15 residents

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

Mount Prospect Marital Status

56% of residents age 15 and older are married.

MarriedNever married
Overall
Male
Female
Marital status of residents age 15 and older
StatusOverallMaleFemale
Married56%59%54%
Never married28%31%25%
Divorced8%6%9%
Widowed6%3%10%
Separated2%1%3%

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