City · Illinois
Eldorado, Illinois
Eldorado, city, in Saline County, Illinois. Eldorado had 3,579 residents on July 1, 2025 by the Census Bureau's estimate, down 4.5% since 2020; the 2020 Census counted 3,743 and the ACS 2020-2024 5-year estimates put it at 3,771 (±247). GEOID 1723009.
Residents, July 2025 estimate
3,579
Census Bureau estimate (no margin published)
2020 Census count: 3,743 · ACS 2020-2024: 3,771 ±247
Median household income
$37,154
±$4,598 (90% margin)
Illinois: $83,390
Median home value
$66,200
±$14,487 (90% margin)
Illinois: $263,300
Median gross rent
$657
±$123 (90% margin)
Illinois: $1,274
Where is Eldorado and what county is it in?
Eldorado is a city in Saline County, Illinois. It covers 2.5 square miles of land, 1,495 residents per square mile in 2020.
Eldorado lies entirely within East Eldorado Township, a township with its own local government (2020 census blocks).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Eldorado, and is it growing?
The Census Bureau estimates that 3,579 people lived in Eldorado on July 1, 2025, down 4.5% since 2020, a steeper fall than Illinois's (−0.8%). The 2020 Census counted 3,743 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 3,771 (±247).
| Measure | Eldorado | Saline County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 3,771 ±247 | 23,213 | −378 |
| Households | 1,898 ±183 | 10,024 | no clear change |
| Average household size | 1.92 ±0.15 | 2.26 | −0.39 |
| Housing units | 2,134 ±197 | 11,547 | no clear change |
Eldorado's population since 2000
From 4,534 in 2000 to 3,579 in 2025: down 21.1%. The 2000, 2010 and 2020 figures are census counts, each for Eldorado as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Eldorado?
The median resident of Eldorado is 46.6 years old; 17.6% are under 18 and 23.5% are 65 or older. The largest group is non-Hispanic white residents at 90.5%, then Hispanic or Latino residents (of any race) at 4.9%.
| Measure | Eldorado | Saline County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 46.6 ±7.4 | 43.8 | no clear change |
| Under 18 years | 17.6% ±2.9 pts | 20.7% | – |
| 65 years and over | 23.5% ±3.7 pts | 21.5% | – |
| Male | 50.1% ±4.2 pts | 49.6% | – |
| Hispanic or Latino (any race) | 4.9% ±2.7 pts | 2.2% | no clear change |
| White alone, not Hispanic | 90.5% ±3.6 pts | 91.3% | no clear change |
| Black or African American alone, not Hispanic | 0.3% ±0.9 pts | 3.1% | – |
| Asian alone, not Hispanic | 1.6% ±1.3 pts | 0.5% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.2% ±0.3 pts | 0.1% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.0 pts | 0.0% | – |
| Two or more races, not Hispanic | 1.9% ±1.1 pts | 2.6% | – |
| Some other race alone, not Hispanic | 0.6% ±0.7 pts | 0.1% | – |
| Born outside the United States | 1.4% ±1.1 pts | 0.9% | – |
| Speak a language other than English at home (age 5+) | 0.7% ±1.1 pts | 2.0% | – |
| Civilian veterans (age 18+) | 8.4% ±3.3 pts | 8.0% | – |
| With a disability | 29.2% ±5.0 pts | 23.9% | – |
| No health insurance coverage | 6.5% ±3.8 pts | 5.4% | no clear change |
| High school graduate or higher (age 25+) | 91.4% ±2.8 pts | 89.7% | – |
| Bachelor's degree or higher (age 25+) | 16.6% ±5.7 pts | 19.6% | no clear change |
| Graduate or professional degree (age 25+) | 4.9% ±3.5 pts | 5.7% | – |
| Lived in the same house a year earlier | 82.9% ±6.9 pts | 89.9% | – |
| Moved from another state in the past year | 0.1% ±0.3 pts | 0.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Eldorado earn?
Half of Eldorado's 1,898 households earn less than $37,154 a year (±$4,598), against $53,117 in Saline County and $83,390 in Illinois. In 2015-2019 the median was $47,654 in 2024 dollars, so it fell by $10,500 after inflation. 22.4% of residents live below the poverty line.
| Measure | Eldorado | Saline County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $37,154 ±$4,598 | $53,117 | −$10,500 |
| Mean household income | $76,164 ±$19,788 | $83,124 | – |
| Per capita income | $38,984 ±$10,039 | $36,683 | +$13,267 |
| People below the poverty line | 22.4% ±6.4 pts | 18.9% | no clear change |
| Children under 18 below the poverty line | 15.2% ±11.5 pts | 21.7% | – |
| Households receiving SNAP | 37.4% ±7.5 pts | 26.2% | – |
| Households with a computer | 75.3% ±7.5 pts | 84.8% | – |
| Households with a broadband subscription | 72.8% ±6.9 pts | 76.5% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Eldorado?
Owners occupy 62.4% of Eldorado's occupied homes and renters 37.6%. The median owner-occupied home is valued at $66,200 by its owner (±$14,487). The median renter pays $657 a month including utilities, and 38.1% of renters pay 35% or more of their income on rent.
| Measure | Eldorado | Saline County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $66,200 ±$14,487 | $94,300 | no clear change |
| Median gross rent | $657 ±$123 | $726 | no clear change |
| Renters paying 35% or more of income on rent | 38.1% ±16.4 pts | 45.4% | no clear change |
| Median monthly owner costs, with a mortgage | $889 ±$199 | $1,165 | – |
| Owner-occupied homes | 62.4% ±7.3 pts | 72.5% | −10.1 pts |
| Renter-occupied homes | 37.6% ±7.3 pts | 27.5% | – |
| Housing units | 2,134 ±197 | 11,547 | no clear change |
| Homeowner vacancy rate | 4.2% ±3.4 pts | 1.8% | – |
| Rental vacancy rate | 0.0% ±5.1 pts | 2.8% | – |
| Single-family detached homes | 74.3% ±6.1 pts | 74.2% | – |
| Mobile homes | 8.6% ±5.6 pts | 11.6% | – |
| Built 2020 or later | 0.9% ±1.2 pts | 1.0% | – |
| Built 2010 to 2019 | 6.5% ±3.3 pts | 7.1% | – |
| Built 1939 or earlier | 21.4% ±5.0 pts | 15.4% | – |
| Households with no vehicle | 9.1% ±4.1 pts | 9.6% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How do people in Eldorado work and get to work?
78.5% of Eldorado's workers drive alone. The average trip to work takes 22.0 minutes.
| Measure | Eldorado | Saline County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 49.5% ±6.8 pts | 54.6% | – |
| Unemployment rate | 1.7% ±1.4 pts | 7.7% | – |
| Drove alone to work | 78.5% ±7.2 pts | 84.7% | – |
| Carpooled | 13.2% ±5.9 pts | 7.9% | – |
| Public transportation | 0.1% ±1.0 pts | 0.3% | – |
| Walked | 2.4% ±3.8 pts | 1.7% | – |
| Worked from home | 5.2% ±6.1 pts | 4.2% | – |
| Mean travel time to work | 22.0 min ±4.6 | 23.1 min | no clear change |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Eldorado?
2 census tracts lie mostly in Eldorado, and 1 more reaches into it (2020 census blocks). Their median household incomes run from $37,917 (Tract 9551) to $52,664 (Tract 9555).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 9551Saline County | 2,301 | $37,917 |
| Tract 9555Saline County | 2,010 | $52,664 |
| Tract 9556Saline County | 2,326 | $77,396 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Eldorado) · Census block assignment files
How does Eldorado compare with other places in Illinois?
By the Census Bureau's July 2025 estimates, Eldorado is the 5,812th-most populous of the 19,476 U.S. incorporated places that have one and the 390th-most populous of 1,294 in Illinois.
Eldorado ranks 1,370th of 1,380 places in Illinois with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 390th | 1,294 |
| Growth 2020-2025 (PEP) | 1,265th | 1,347 |
| Residents per square mile | 432nd | 1,383 |
| Median household income | 1,370th | 1,380 |
| Per capita income | 670th | 1,383 |
| Median home value | 1,360th | 1,379 |
| Median gross rent | 1,207th | 1,280 |
| Poverty rate | 83rd | 1,119 |
| Bachelor's degree or higher | 1,087th | 1,369 |
| Median age | 203rd | 1,383 |
| Owner-occupied share | 1,246th | 1,382 |
| Travel time to work | 994th | 1,382 |
Eldorado's figures with every place in Illinois (CSV)
Every place in Illinois, sortable · Compare Eldorado with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Eldorado?
17 of the 57 figures for Eldorado on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Eldorado are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Eldorado.