Demographics of Peru city, Illinois

Peru city, Illinois had 9,780 people on July 1, 2025, by the Census Bureau’s estimate: −140 since July 2020. Age, income, poverty, housing and origin below come from the survey, averaged over 2020–2024, each with its margin of error.

Peru city, in four figures

9,780
Population: July 1, 2025, Vintage 2025 estimate. The survey’s 2020–⁠2024 figure is 9,775 ±207.; −1.4%
Change since July 2020: −140 people.; 45.7 ±3.5
Median age: ACS 2020–⁠2024.; $74,808 ±$9,191
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.

Peru city, Illinois's population shrank 1.4% from July 2020 to July 2025, against +3.1% nationally

The July 1 estimate of Peru 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

Peru city, Illinois's population shrank 1.4% from July 2020 to July 2025, against +3.1% nationally. The July 1 estimate of Peru 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	9,920	100.0	100.0
2021	9,885	99.6	100.2
2022	9,784	98.6	100.7
2023	9,779	98.6	101.6
2024	9,786	98.6	102.5
2025	9,780	98.6	103.1

Population of Peru city, Illinois on July 1 of each year, Vintage 2025
July 1	Population	Change
2020	9,920	—
2021	9,885	−35
2022	9,784	−101
2023	9,779	−5
2024	9,786	+7
2025	9,780	−6

Age, 2020–2024

The median age is 45.7 ±3.5: for men 42.9 ±4.4 and for women 47.9 ±2.9. Shares are of everyone the survey counts, in the Bureau’s sex-by-age table (B01001).

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People in Peru city by age, ACS 2020–2024
Age	People	Share	Illinois	United States
Under 5	432 ±163	4.4% ±1.7	5.4% ±<0.1	5.6% ±<0.1
5 to 17	1,484 ±275	15.2% ±2.8	16.4% ±0.1	16.3% ±<0.1
18 to 24	746 ±273	7.6% ±2.8	9.1% ±<0.1	9.1% ±<0.1
25 to 44	2,145 ±313	21.9% ±3.2	26.9% ±0.1	26.9% ±<0.1
45 to 64	2,628 ±378	26.9% ±3.8	25.2% ±0.1	24.8% ±<0.1
65 and over	2,340 ±335	23.9% ±3.4	17.0% ±0.1	17.2% ±<0.1

Income and poverty, 2020–2024

Median household income is $74,808 ±$9,191, and income per person $42,211 ±$3,123, 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 Peru city by income, ACS 2020–2024
Household income	Households	Share	Illinois	United States
Under $25,000	514 ±181	11.5% ±4.0	14.6% ±0.1	14.6% ±<0.1
$25,000 to $49,999	935 ±227	20.9% ±5.0	16.0% ±0.2	16.7% ±<0.1
$50,000 to $74,999	792 ±226	17.7% ±5.0	14.8% ±0.1	15.5% ±<0.1
$75,000 to $99,999	740 ±152	16.5% ±3.3	12.6% ±0.1	12.6% ±<0.1
$100,000 to $149,999	738 ±172	16.5% ±3.8	18.0% ±0.2	17.5% ±<0.1
$150,000 to $199,999	485 ±155	10.8% ±3.4	10.1% ±0.1	9.6% ±<0.1
$200,000 or more	276 ±118	6.2% ±2.6	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 Peru city by age, ACS 2020–2024
Age	Below poverty	Rate	Illinois	United States
All ages	860 ±362	9.0% ±3.8	11.8% ±0.1	12.5% ±0.1
Under 18	82 to 322	4.6% to 16.8%	15.1% ±0.2	16.1% ±0.1
18 to 59	160 to 614	3.4% to 12.9%	11.0% ±0.1	11.6% ±0.1
60 and over	271 ±103	9.2% ±3.3	10.6% ±0.1	11.0% ±<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%.

Housing, 2020–2024

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Housing in Peru city, ACS 2020–2024
Measure	Peru city	Illinois	United States
Housing units	4,853 ±226	5,457,452 ±471	143,775,355 ±10,234
Occupied	92.3% ±1.4	92.3% ±0.1	89.9% ±0.1
Vacant	7.7% ±2.9	7.7% ±0.1	10.1% ±0.1
Owner occupied	75.0% ±5.0	67.1% ±0.3	65.2% ±0.3
Renter occupied	25.0% ±5.0	32.9% ±0.2	34.8% ±0.1
Median home value	$154,300 ±$10,865	$263,300 ±$797	$332,700 ±$236
Median gross rent	$921 ±$125	$1,274 ±$5	$1,413 ±$2
Median year built	1958 ±2	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 Peru city by Hispanic origin and race, ACS 2020–2024
Origin	People	Share	Illinois	United States
Hispanic or Latino	1,067 ±445	10.9% ±4.5	18.8% ±<0.1	19.3% ±<0.1
White alone, not Hispanic	8,389 ±453	85.8% ±4.3	58.1% ±<0.1	57.4% ±<0.1
Black alone, not Hispanic	0 to 122	0% to 1.2%	13.3% ±<0.1	11.9% ±<0.1
Asian alone, not Hispanic	2 to 156	< 0.1% to 1.6%	5.9% ±<0.1	5.9% ±<0.1
American Indian and Alaska Native alone, not Hispanic	0 to 18	0% to 0.2%	0.1% ±<0.1	0.5% ±<0.1
Native Hawaiian and Other Pacific Islander alone, not Hispanic	0 to 18	0% to 0.2%	< 0.1% ±<0.1	0.2% ±<0.1
Some other race alone, not Hispanic	0 to 93	0% to 1.0%	0.4% ±<0.1	0.6% ±<0.1
Two or more races, not Hispanic	29 to 265	0.3% to 2.7%	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 Peru city by place of birth and citizenship, ACS 2020–2024
Born	People	Share	Illinois	United States
Born in the state	8,281 ±352	84.7% ±3.1	66.5% ±0.1	57.3% ±<0.1
Born in another state	998 ±201	10.2% ±2.0	17.5% ±0.1	26.9% ±<0.1
Born a citizen outside the states	0 to 25	0% to 0.3%	1.3% ±<0.1	1.7% ±<0.1
Born abroad	235 to 739	2.4% to 7.6%	14.7% ±0.1	14.1% ±<0.1
Naturalized citizens	112 to 394	1.1% to 4.0%	7.7% ±0.1	7.4% ±<0.1
Not citizens	80 to 388	0.8% to 4.0%	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%.

Peru city among the places of Illinois

227th 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 Peru city in population, ACS 2020–2024
Place	ACS 2020–⁠2024
Lyons village	10,339 ±25
Wood River city	10,279 ±83
Highland city	10,262 ±318
Winfield village	10,095 ±86
Mahomet village	10,049 ±21
Peru city	9,775 ±207
Sauk Village village	9,678 ±23
Harvard city	9,598 ±612
Frankfort Square CDP	9,560 ±699
Rochelle city	9,529 ±110
LaSalle city	9,498 ±144

Rankings this appears in

No. 5 Places in Illinois by median age
No. 57 Places in Illinois by poverty rate
No. 72 Places in Illinois by homeownership rate
No. 85 Places in Illinois by Hispanic or Latino share
No. 102 Places in Illinois by per capita income
No. 147 Places in Illinois by median household income

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