Mendota, IL Demographics

Population 8,133 · Census ACS 2020–24

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Median age by neighborhoodHistory and comparison ↓︎
Mendota, IL map of median age by neighborhood
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Population and households in Mendota

Household size in Mendota

Household size, people per household
PeriodMendotaIllinoisU.S.
2006–102.682.692.68
2010–142.692.712.73
2015–192.482.662.71
2020–242.442.582.65
Change−0.25−0.11−0.03
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Households in Mendota run small, averaging 2.44 people against 2.65 nationally, which usually means more singles and couples and fewer children. Since 2006–10, household size has dropped from 2.68, a much bigger shift than nationally. The biggest households, usually families with children, are concentrated in the east.

Household size: the average number of people living in each occupied home. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25010).

Median age in Mendota

Median age, years
PeriodMendotaIllinoisU.S.
2006–1042.637.637.7
2010–1439.838.538.6
2015–1941.539.639.6
2020–2442.140.240.1
Change−0.6+2.6+2.3
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Mendota skews a little older than the country: its median age is 42.1, against 40.1 nationally. The median age has edged down from 42.6 in 2006–10, even as the national median rose. Residents skew youngest in the center and oldest in the northwest.

Median age: the age that splits residents into two equal halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B01002).

Single-parent households in Mendota

Single-parent households, % of households
PeriodMendotaIllinoisU.S.
2006–1010.8%11.7%12.3%
2010–1411.5%11.7%12.3%
2015–1913.5%11.1%11.6%
2020–2415.7%11.3%11.6%
Change+4.9 pts−0.4 pts−0.6 pts
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Single parents head nearly one in six households in Mendota (15.7%), well above the national share of 11.6%. Since 2006–10, the single-parent share has risen 4.9 points, even as the national share fell. Mendota has a higher share of single-parent households than the great majority of Illinois cities.

Single-parent households: households where one adult with no spouse present lives with children under 18. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B11003).

Housing in Mendota

Renters in Mendota

Renters, % of occupied homes
PeriodMendotaIllinoisU.S.
2006–1024.3%30.8%33.3%
2010–1427.0%33.1%35.6%
2015–1932.2%33.9%36.0%
2020–2434.5%32.9%34.8%
Change+10.3 pts+2.1 pts+1.5 pts
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Renting in Mendota is about as common as it is nationally: 34.5% of households rent, against 34.8%. Among homeowners, 52.8% have no mortgage at all, well above the national share of 39.8%. Rentals cluster in the south; owners are most common in the east. The renter share is up 10.3 points from 2006–10, a much bigger shift than nationally.

Renters: occupied homes that are rented rather than owned. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25003).

Vacant homes in Mendota

Vacant homes, % of all homes
PeriodMendotaIllinoisU.S.
2006–1011.9%10.0%11.4%
2010–1412.6%10.1%11.4%
2015–199.5%9.8%11.1%
2020–2410.7%8.1%9.6%
Change−1.2 pts−1.9 pts−1.8 pts
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About as many homes sit empty in Mendota as nationally: 10.7%, against 9.6%. The rate is higher than in Illinois overall (8.1%). Vacancy is down 1.2 points from 2006–10, as it has nationally.

Vacant homes: homes with no one living in them, including vacation homes and homes for sale or rent. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25002).

Age of homes in Mendota

Age of homes, median year built
PeriodMendotaIllinoisU.S.
2006–10195519661974
2010–14195519671975
2015–19195719681977
2020–24196219701980
Change+7+4+6
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The housing in Mendota is old by national standards: the median home dates to 1962, against 1980 for the U.S., so buyers will find more older houses, some of them due for updates. The median year built has moved up from 1955 in 2006–10, a sign of steady new building. The newest homes are mostly in the west, the oldest in the east.

Age of homes: the year that splits the housing stock into older and newer halves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25035).

Rent in Mendota

Rent, per month
PeriodMendotaIllinoisU.S.
2006–10$593$953$965
2010–14$704$1,028$1,040
2015–19$661$1,165$1,213
2020–24$766$1,428$1,571
Change+$173+$475+$606
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A typical rental in Mendota costs $766 a month with utilities, well below the national median of $1,571. Rents are up $173 a month from 2006–10, a 29% rise, a slower climb than the nation's. Rent takes 23.7% of the typical renter's income, comfortably under the 30% mark often used to define affordable rent. Rents run highest in the east and lowest in the northwest.

Rent: monthly rent plus the utilities renters pay themselves. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B25064).

Education in Mendota

Bachelor's degrees in Mendota

Bachelor's degrees, % of adults 25+
PeriodMendotaIllinoisU.S.
2006–1015.5%31.2%28.4%
2010–1414.9%32.4%29.6%
2015–1916.6%34.7%32.1%
2020–2420.5%37.7%35.6%
Change+4.9 pts+6.5 pts+7.2 pts
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Fewer adults in Mendota have a four-year degree than in the country as a whole: 20.5%, against 35.6% nationally. The share with a degree is up 4.9 points from 2006–10, as it has nationally. College graduates are most concentrated in the north and least in the south.

Bachelor's degrees: adults 25 and older with a bachelor's degree or higher. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

High school graduates in Mendota

High school graduates, % of adults 25+
PeriodMendotaIllinoisU.S.
2006–1081.9%86.3%84.9%
2010–1485.0%87.5%86.1%
2015–1982.6%89.1%87.7%
2020–2485.9%90.3%89.3%
Change+4.0 pts+4.0 pts+4.3 pts
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About one in seven adults in Mendota never finished high school, more than nationally: 85.9% have a diploma or equivalent, against 89.3% across the U.S. Since 2006–10, the share with a diploma has risen 4.0 points, in line with the national trend. Mendota has a lower share of high school graduates than the great majority of Illinois cities.

High school graduates: adults 25 and older with a high school diploma, GED or more. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B15003).

Jobs in Mendota

Unemployment, % of the labor force
PeriodMendotaIllinoisU.S.
2006–105.6%8.7%8.1%
2010–149.1%10.2%9.4%
2015–195.7%6.1%5.6%
2020–244.9%6.0%5.4%
Change−0.7 pts−2.7 pts−2.7 pts
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Unemployment in Mendota is close to the national rate: 4.9% of the labor force, against 5.4%. The rate is lower than in Illinois overall (6.0%). Because the Census pools five years of responses (2020–24), these rates smooth over short swings and lag the current job market.

Unemployment: people looking for work as a share of everyone working or looking. Source: BestNeighborhood calculations from U.S. Census Bureau ACS 5-year block-group estimates (table B23025).

Mendota compared with nearby cities

CityHousehold sizeMedian ageSingle parentsRentersVacant homesMedian year builtMedian rentBachelor's degreeHigh school diplomaUnemployment
Mendota2.4442.115.7%34.5%10.7%1962$76620.5%85.9%4.9%
Meriden2.4549.810.8%28.3%10.0%1953$86514.2%78.9%3.5%
Triumph2.6344.011.2%12.1%6.9%1961$91723.5%93.8%1.0%
Troy Grove2.8736.113.5%3.9%4.0%1965$87127.1%92.6%0.9%
La Moille2.4745.98.4%18.4%12.0%1944$95119.4%93.4%2.2%
Sublette2.3536.34.0%36.7%10.8%1963$1,07018.9%94.1%5.7%
The Burg2.5436.010.1%29.0%13.0%1948$1,31715.3%90.8%4.5%
Arlington2.2550.95.3%12.1%12.8%1944$84023.0%93.8%4.6%
Cherry2.1551.53.6%15.8%6.6%1945$85618.5%87.0%2.8%
Earlville2.3539.611.3%32.2%5.5%1967$99714.1%89.9%4.9%
Tomahawk Bluff2.8545.22.3%5.2%5.2%1985$1,08629.1%99.0%1.9%

All figures 2020–24.

Cities with similar populations: North Scituate, RI · Opp, AL · Olivette, MO · Old Orchard Beach, ME · Oakville, CT · Oak Grove, KY · Northfield, NJ · North Weeki Wachee, FL · North Sioux City, SD · Pinehurst, MA

About these numbers

Every figure on this page is a BestNeighborhood calculation from the Census Bureau's American Community Survey (ACS), built up from the Census block groups that make up Mendota. Each ACS 5-year release pools five years of responses; this page shows the last 15 releases, 2006–10 through 2020–24. Neighboring releases share four of their five years, so they move gradually and small changes between them are within the survey's margin of error; in small places the lines can jump from one release to the next for the same reason. The maps show the same measures for each neighborhood, ranked against the whole country.

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