Village · Illinois
Energy, Illinois
Energy, village, in Williamson County, Illinois. Energy had 960 residents on July 1, 2025 by the Census Bureau's estimate, down 1.5% since 2020; the 2020 Census counted 974 and the ACS 2020-2024 5-year estimates put it at 1,050 (±267). GEOID 1724166.
Residents, July 2025 estimate
960
Census Bureau estimate (no margin published)
2020 Census count: 974 · ACS 2020-2024: 1,050 ±267
Median household income
$65,357
±$23,677 (90% margin)
Illinois: $83,390
Median home value
$151,800
±$26,284 (90% margin)
Illinois: $263,300
Median gross rent
$638
±$323 (90% margin)
Illinois: $1,274
Where is Energy and what county is it in?
Energy is a village in Williamson County, Illinois. It covers 1.2 square miles of land, 815 residents per square mile in 2020.
Energy is in the Marion-Herrin, IL micropolitan statistical area (Census Bureau delineation, July 2023).
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Energy, and is it growing?
The Census Bureau estimates that 960 people lived in Energy on July 1, 2025, down 1.5% since 2020, a steeper fall than Illinois's (−0.8%). The 2020 Census counted 974 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 1,050 (±267).
| Measure | Energy | Williamson County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 1,050 ±267 | 66,876 | no clear change |
| Households | 462 ±122 | 28,983 | no clear change |
| Average household size | 2.22 ±0.28 | 2.23 | no clear change |
| Housing units | 518 ±129 | 32,084 | no clear change |
Energy's population since 2000
From 1,175 in 2000 to 960 in 2025: down 18.3%. The 2000, 2010 and 2020 figures are census counts, each for Energy 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 Energy?
The median resident of Energy is 48.5 years old; 22.7% are under 18 and 31.3% are 65 or older. The largest group is non-Hispanic white residents at 80.5%, then non-Hispanic residents of two or more races at 16.9%.
| Measure | Energy | Williamson County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 48.5 ±13.9 | 41.6 | no clear change |
| Under 18 years | 22.7% ±9.8 pts | 21.3% | – |
| 65 years and over | 31.3% ±9.7 pts | 19.6% | – |
| Male | 42.8% ±7.4 pts | 50.2% | – |
| Hispanic or Latino (any race) | 2.0% ±2.1 pts | 2.9% | – |
| White alone, not Hispanic | 80.5% ±12.2 pts | 87.9% | −13.5 pts |
| Black or African American alone, not Hispanic | 0.0% ±3.5 pts | 4.3% | – |
| Asian alone, not Hispanic | 0.7% ±1.0 pts | 1.4% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±3.5 pts | 0.2% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±3.5 pts | 0.0% | – |
| Two or more races, not Hispanic | 16.9% ±12.4 pts | 3.2% | – |
| Some other race alone, not Hispanic | 0.0% ±3.5 pts | 0.1% | – |
| Born outside the United States | 0.5% ±0.5 pts | 2.0% | – |
| Speak a language other than English at home (age 5+) | 2.5% ±2.3 pts | 3.3% | – |
| Civilian veterans (age 18+) | 10.5% ±4.6 pts | 8.7% | – |
| With a disability | 23.2% ±8.2 pts | 19.1% | – |
| No health insurance coverage | 3.6% ±2.7 pts | 4.6% | – |
| High school graduate or higher (age 25+) | 93.4% ±5.8 pts | 92.8% | – |
| Bachelor's degree or higher (age 25+) | 20.3% ±7.8 pts | 26.2% | no clear change |
| Graduate or professional degree (age 25+) | 9.5% ±4.9 pts | 10.6% | – |
| Lived in the same house a year earlier | 92.9% ±3.3 pts | 87.6% | – |
| Moved from another state in the past year | 0.7% ±0.9 pts | 2.0% | – |
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 Energy earn?
Half of Energy's 462 households earn less than $65,357 a year (±$23,677), against $65,604 in Williamson County and $83,390 in Illinois. In 2015-2019 it was $61,573 in 2024 dollars; the margins of error cannot tell the two periods apart.
| Measure | Energy | Williamson County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $65,357 ±$23,677 | $65,604 | no clear change |
| Mean household income | $83,219 ±$14,888 | $85,846 | – |
| Per capita income | $35,774 ±$7,600 | $37,284 | no clear change |
| People below the poverty line | 15.2% ±11.1 pts | 13.8% | – |
| Children under 18 below the poverty line | 22.3% ±22.8 pts | 17.8% | – |
| Households receiving SNAP | 12.1% ±8.3 pts | 16.6% | – |
| Households with a computer | 88.3% ±8.9 pts | 92.9% | – |
| Households with a broadband subscription | 85.7% ±8.5 pts | 87.6% | – |
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 Energy?
Owners occupy 81.6% of Energy's occupied homes and renters 18.4%. The median owner-occupied home is valued at $151,800 by its owner (±$26,284). The median renter pays $638 a month including utilities.
| Measure | Energy | Williamson County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $151,800 ±$26,284 | $156,400 | no clear change |
| Median gross rent | $638 ±$323 | $930 | no clear change |
| Renters paying 35% or more of income on rent | 17.5% ±17.2 pts | 35.2% | – |
| Median monthly owner costs, with a mortgage | $1,483 ±$655 | $1,374 | – |
| Owner-occupied homes | 81.6% ±9.0 pts | 70.7% | +25.3 pts |
| Renter-occupied homes | 18.4% ±9.0 pts | 29.3% | – |
| Housing units | 518 ±129 | 32,084 | no clear change |
| Homeowner vacancy rate | 5.0% ±7.9 pts | 0.9% | – |
| Rental vacancy rate | 11.5% ±17.2 pts | 5.2% | – |
| Single-family detached homes | 79.5% ±8.9 pts | 74.9% | – |
| Mobile homes | 4.6% ±4.2 pts | 6.8% | – |
| Built 2020 or later | 0.0% ±7.0 pts | 1.3% | – |
| Built 2010 to 2019 | 6.8% ±5.8 pts | 11.2% | – |
| Built 1939 or earlier | 5.6% ±4.7 pts | 14.7% | – |
| Households with no vehicle | 7.1% ±7.4 pts | 6.0% | – |
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 many new homes is Energy building?
Builders took permits for 1 new housing units in Energy in 2025 (1 in single-family houses), 1.0 per 1,000 residents against 1.5 across Illinois.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Energy work and get to work?
89.7% of Energy's workers drive alone. The average trip to work takes 20.8 minutes.
| Measure | Energy | Williamson County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 53.7% ±9.4 pts | 58.8% | – |
| Unemployment rate | 4.7% ±4.7 pts | 5.0% | – |
| Drove alone to work | 89.7% ±6.0 pts | 82.1% | – |
| Carpooled | 2.8% ±3.0 pts | 7.2% | – |
| Public transportation | 0.5% ±1.1 pts | 0.3% | – |
| Walked | 0.0% ±8.4 pts | 0.5% | – |
| Worked from home | 7.0% ±5.3 pts | 8.8% | – |
| Mean travel time to work | 20.8 min ±4.0 | 23.5 min | +5.1 min |
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 Energy?
No census tract lies mostly in Energy; 2 tracts reach into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 203Williamson County | 5,379 | $69,684 |
| Tract 210.02Williamson County | 1,745 | $65,733 |
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 Energy) · Census block assignment files
How does Energy compare with other places in Illinois?
By the Census Bureau's July 2025 estimates, Energy is the 10,440th-most populous of the 19,476 U.S. incorporated places that have one and the 667th-most populous of 1,294 in Illinois.
Energy is not ranked by income or the other survey measures: those rankings include places of 1,000 or more residents (2020 Census) with a reliable estimate.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 667th | 1,294 |
Energy's figures with every place in Illinois (CSV)
Every place in Illinois, sortable · Compare Energy 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 Energy?
27 of the 57 figures for Energy 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 Energy 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 Energy.