Demographics of Mount Vernon city, Illinois

Mount Vernon city, Illinois had 14,187 people on July 1, 2025, by the Census Bureau’s estimate: −379 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Mount Vernon city, in four figures

14,187
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 14,090 ±361.; −2.6%
Change since July 2020: −379 people.; 38.9 ±1.5
Median age: ACS 2020–⁠2024.; $55,357 ±$4,203
Median household income: ACS 2020–⁠2024, in 2024 dollars.

Population, year by year

July 1 estimates from the Census Bureau’s Vintage 2025. The Bureau publishes no births, deaths or migration for a place, so the change is the difference between one July estimate and the next.

Mount Vernon city, Illinois's population shrank 2.6% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Mount Vernon city, Illinois's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).

Source: The Census Bureau

About this chart

The figures

Mount Vernon city, Illinois's population shrank 2.6% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Mount Vernon city, Illinois's resident population and the nation's, each year of the Census Bureau's Vintage 2025, as a share of its July 2020 level (= 100).
July 1	Population	Index	United States
2020	14,566	100.0	100.0
2021	14,511	99.6	100.2
2022	14,302	98.2	100.7
2023	14,268	98.0	101.6
2024	14,182	97.4	102.5
2025	14,187	97.4	103.1

Population of Mount Vernon city, Illinois on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	14,566	—
2021	14,511	−55
2022	14,302	−209
2023	14,268	−34
2024	14,182	−86
2025	14,187	+5

Age, 2020–2024

The median age is 38.9 ±1.5: for men 34.9 ±2.4 and for women 43.7 ±1.6. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Mount Vernon city by age, ACS 2020–2024
Age	People	Share	Illinois	United States
Under 5	834 ±120	5.9% ±0.8	5.4% ±<0.1	5.6% ±<0.1
5 to 17	2,354 ±244	16.7% ±1.7	16.4% ±0.1	16.3% ±<0.1
18 to 24	997 ±176	7.1% ±1.2	9.1% ±<0.1	9.1% ±<0.1
25 to 44	3,885 ±319	27.6% ±2.1	26.9% ±0.1	26.9% ±<0.1
45 to 64	3,263 ±287	23.2% ±2.0	25.2% ±0.1	24.8% ±<0.1
65 and over	2,757 ±315	19.6% ±2.2	17.0% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $55,357 ±$4,203, and income per person $31,841 ±$2,891, in 2024 dollars. The median is $83,390 ±$362 in Illinois and $80,734 ±$166 in the United States.

Households by income

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Households in Mount Vernon city by income, ACS 2020–2024
Household income	Households	Share	Illinois	United States
Under $25,000	1,303 ±230	21.3% ±3.7	14.6% ±0.1	14.6% ±<0.1
$25,000 to $49,999	1,422 ±217	23.3% ±3.4	16.0% ±0.2	16.7% ±<0.1
$50,000 to $74,999	1,402 ±255	23.0% ±4.1	14.8% ±0.1	15.5% ±<0.1
$75,000 to $99,999	742 ±150	12.1% ±2.4	12.6% ±0.1	12.6% ±<0.1
$100,000 to $149,999	778 ±205	12.7% ±3.3	18.0% ±0.2	17.5% ±<0.1
$150,000 to $199,999	232 ±101	3.8% ±1.6	10.1% ±0.1	9.6% ±<0.1
$200,000 or more	229 ±90	3.7% ±1.5	13.8% ±0.1	13.4% ±0.1

Poverty by age

The poverty rate is the share of people whose family income is below the federal threshold for their family’s size, of everyone for whom the Bureau determines it (B17020).

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Poverty rate in Mount Vernon city by age, ACS 2020–2024
Age	Below poverty	Rate	Illinois	United States
All ages	2,340 ±434	17.3% ±3.2	11.8% ±0.1	12.5% ±0.1
Under 18	755 ±188	25.1% ±5.6	15.1% ±0.2	16.1% ±0.1
18 to 59	1,249 ±253	17.3% ±3.3	11.0% ±0.1	11.6% ±0.1
60 and over	336 ±136	10.2% ±4.0	10.6% ±0.1	11.0% ±<0.1

Housing, 2020–2024

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Housing in Mount Vernon city, ACS 2020–2024
Measure	Mount Vernon city	Illinois	United States
Housing units	7,131 ±245	5,457,452 ±471	143,775,355 ±10,234
Occupied	85.7% ±1.9	92.3% ±0.1	89.9% ±0.1
Vacant	14.3% ±3.0	7.7% ±0.1	10.1% ±0.1
Owner occupied	53.1% ±3.4	67.1% ±0.3	65.2% ±0.3
Renter occupied	46.9% ±3.4	32.9% ±0.2	34.8% ±0.1
Median home value	$99,800 ±$10,409	$263,300 ±$797	$332,700 ±$236
Median gross rent	$910 ±$53	$1,274 ±$5	$1,413 ±$2
Median year built	1968 ±3	1971 ±2	1980 ±1

Occupied and vacant are shares of all housing units; owner and renter occupied are shares of occupied units. Value and rent are medians in 2024 dollars.

Origin and place of birth, 2020–2024

Hispanic or Latino origin is not a race in the Census Bureau’s tables. Here the people of Hispanic origin, of any race, are one row, and everyone else is counted by race alone (B03002), so the rows add to the whole.

Hispanic origin and race

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People in Mount Vernon city by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Illinois	United States
Hispanic or Latino	637 ±143	4.5% ±1.0	18.8% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	10,669 ±418	75.7% ±2.2	58.1% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	1,545 ±242	11.0% ±1.7	13.3% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	66 to 214	0.5% to 1.5%	5.9% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 210	0% to 1.5%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 20	0% to 0.1%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	4 to 78	< 0.1% to 0.6%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	956 ±233	6.8% ±1.6	3.4% ±0.1	4.3% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Place of birth and citizenship

“Born a citizen outside the states” counts people born in Puerto Rico, the island areas, or abroad to American parents. Naturalized citizens and those who are not citizens together make up the people born abroad (B05002).

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People in Mount Vernon city by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Illinois	United States
Born in the state	10,854 ±474	77.0% ±2.7	66.5% ±0.1	57.3% ±<0.1
Born in another state	2,837 ±353	20.1% ±2.5	17.5% ±0.1	26.9% ±<0.1
Born a citizen outside the states	4 to 84	< 0.1% to 0.6%	1.3% ±<0.1	1.7% ±<0.1
Born abroad	355 ±125	2.5% ±0.9	14.7% ±0.1	14.1% ±<0.1
Naturalized citizens	218 ±93	1.5% ±0.7	7.7% ±0.1	7.4% ±<0.1
Not citizens	55 to 219	0.4% to 1.6%	7.0% ±0.1	6.8% ±<0.1

A range (the estimate less and plus its margin) where the Bureau's estimate is too uncertain to state as one number: a coefficient of variation over 30%.

Mount Vernon city among the places of Illinois

175th of 337 places of 5,000 or more by the survey’s 2020–2024 count. Every one is listed on the Illinois page.

Places of Illinois near Mount Vernon city in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Shiloh village	14,572 ±283
Hickory Hills city	14,526 ±568
Lindenhurst village	14,417 ±30
Beach Park village	14,115 ±758
Chicago Ridge village	14,099 ±32
Mount Vernon city	14,090 ±361
Wauconda village	14,027 ±33
Glen Carbon village	13,977 ±462
Midlothian village	13,948 ±27
Forest Park village	13,943 ±29
Wood Dale city	13,933 ±30

Rankings this appears in

No. 16 Places in Illinois by poverty rate
No. 76 Places in Illinois by median age
No. 195 Places in Illinois by per capita income
No. 205 Places in Illinois by Hispanic or Latino share
No. 215 Places in Illinois by foreign-born share
No. 224 Places in Illinois by median rent

Sources

Census Bureau population estimates — incorporated places and New England towns — U.S. Census Bureau · U.S. Government work · retrieved September 25, 2026
American Community Survey 5-year estimates — table-based Summary File · U.S. Government work

Compiled automatically from Census Bureau population estimates — incorporated places and New England towns and American Community Survey 5-year estimates — table-based Summary File by a checked SQL query · Editor: Kian O'Connor · How this site is built

Data retrieved September 25, 2026