City profile · Illinois · Census ACS 2023

Gillespie, IL

Population, income, housing, safety, climate and schools for Gillespie - drawn straight from Census ACS, FBI UCR, NOAA, NCES, HUD and FEMA, refreshed on the 2024–2025 release cycle.

3,118
Residents
$76,806
Median income
$89,500
Median home
$916
Median rent (state)

Gillespie - the verdict

Measured against every US city with at least 1,000 residents, Gillespie lands in the 58th percentile for household income. Source: Census ACS.

58th
percentile, household income
6th
percentile, home value
5th
percentile, median rent
📝 How we sourced this

Population, income, and housing-cost figures come from the U.S. Census Bureau American Community Survey 5-year estimates (B-series tables). Crime data uses FBI UCR; climate uses NOAA Climate Normals; school counts come from NCES Common Core of Data; permits use the Census Building Permits Survey (BPS). See our methodology page for the full ETL pipeline and OMB / FIPS join keys.

Data Snapshot: Gillespie, IL

Census ACS 2023 estimates count 3,118 residents in Gillespie, a small town within Illinois. Gillespie households earn a median of $76,806 annually, above the median for U.S. cities on this measure, with a poverty rate of 13.5%. Typical homes in Gillespie are valued around $89,500, and the median resident age is 44.7 years. 18.6% of adults here have a bachelor's degree or higher; 56.7% of working-age residents are in the labor force.

The Census Building Permit Survey recorded 3 residential units authorized here in 2024 (Low Activity).

Illinois tracks close to the national cost-of-living baseline: the state registers 100.0 on a 100-equals-national-average index (Near Average) per BEA Regional Price Parities 2024. A typical two-bedroom carries a HUD Fair Market Rent of $916 per month statewide. Monthly utility costs average around $240 across Illinois, per EIA 2023 residential energy estimates. FEMA's National Risk Index rates natural-hazard exposure at 79.9 out of 100 (High).

Population

3,118 residents

Census ACS 2023 - Illinois

Median Household Income

$76,806 /yr

Poverty 13.5%

Cost of Living Index (state)

100.0 (US=100)

Near Average - BEA RPP 2024, Illinois average

How does Gillespie compare to other US cities?

Here's how Gillespie stacks up against the full field of US cities (population 1,000+), computed live from Census and FBI data.

Household income 58% higher than other cities
Home value 6% pricier than other cities
Median rent 5% pricier than other cities

"Safer than" reflects total crime rate from FBI UCR; the others use Census ACS estimates.

How we calculate these percentiles & ranks

Each percentile compares Gillespie against every qualifying US city; each in-state rank narrows that to Illinois only. Full formula and direction notes: methodology.

Illinois-relative analysis

Median Gross Rent places Gillespie near the bottom of Illinois's cities

Among the 1,336 Illinois cities PlainCities tracks with reported median gross rent data, Gillespie ranks #935 - the 0th percentile within the state. This is a different, narrower cut than the nationwide percentiles above: it compares Gillespie only against its own state's cities, not the full US field.

Median Household Income
#455 of 1,311
65th percentile in Illinois
Median Gross Rent
#935 of 1,336
0th percentile in Illinois
Median Home Value
#939 of 1,315
28th percentile in Illinois
Poverty Rate
#299 of 1,335
77th percentile in Illinois
Bachelor's Degree or Higher
#649 of 1,336
51st percentile in Illinois

Ranked by raw value (highest first); a higher rank is not automatically "better" for every measure, see each metric's own context above. This is a comparison within Illinois only, not a livability score. See the methodology for the source and calculation.

58thIncome percentile

58th percentile nationally for median household income. Source: Census ACS 2023 / FBI UCR 2023.

How Gillespie's home value compares nationally

Median home value vs. every US city (population 1,000+)

$89,500 Among the most affordable more affordable than 94% of 15,600 US cities

$0–$25,000: 5 US cities (0%). Below this entry. $25,000–$50,000: 54 US cities (0%). Below this entry. $50,000–$75,000: 352 US cities (2%). Below this entry. $75,000–$100,000: 1,086 US cities (7%). This entry sits in this band. $100,000–$125,000: 1,516 US cities (10%). Above this entry. $125,000–$150,000: 1,170 US cities (8%). Above this entry. $150,000–$175,000: 1,278 US cities (8%). Above this entry. $175,000–$200,000: 1,229 US cities (8%). Above this entry. $200,000–$225,000: 1,035 US cities (7%). Above this entry. $225,000–$250,000: 976 US cities (6%). Above this entry. $250,000–$275,000: 754 US cities (5%). Above this entry. $275,000–$300,000: 712 US cities (5%). Above this entry. $300,000–$325,000: 521 US cities (3%). Above this entry. $325,000–$350,000: 526 US cities (3%). Above this entry. $350,000–$375,000: 465 US cities (3%). Above this entry. $375,000–$400,000: 393 US cities (3%). Above this entry. $400,000–$425,000: 317 US cities (2%). Above this entry. $425,000–$450,000: 300 US cities (2%). Above this entry. $450,000–$475,000: 307 US cities (2%). Above this entry. $475,000–$500,000: 250 US cities (2%). Above this entry. $500,000–$525,000: 160 US cities (1%). Above this entry. $525,000–$550,000: 156 US cities (1%). Above this entry. $550,000–$575,000: 172 US cities (1%). Above this entry. $575,000–$600,000: 172 US cities (1%). Above this entry. $600,000–$625,000: 163 US cities (1%). Above this entry. $625,000–$650,000: 167 US cities (1%). Above this entry. $650,000–$675,000: 135 US cities (1%). Above this entry. $675,000–$700,000: 101 US cities (1%). Above this entry. $700,000–$725,000: 95 US cities (1%). Above this entry. $725,000–$750,000: 71 US cities (0%). Above this entry. $750,000–$775,000: 65 US cities (0%). Above this entry. $775,000–$800,000: 70 US cities (0%). Above this entry. $800,000–$825,000: 57 US cities (0%). Above this entry. $825,000–$850,000: 67 US cities (0%). Above this entry. $850,000–$875,000: 60 US cities (0%). Above this entry. $875,000–$900,000: 58 US cities (0%). Above this entry. $900,000–$925,000: 47 US cities (0%). Above this entry. $925,000–$950,000: 37 US cities (0%). Above this entry. $950,000–$975,000: 31 US cities (0%). Above this entry. $975,000–$1,000,000: 470 US cities (3%). Above this entry. $1,000,000–$1,025,000: 0 US cities (0%). Above this entry. Gillespie $0 $1,025,000 every US city, bucketed by value

Each bar is a $25K-wide band; taller bars hold more US cities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau ACS 5-Year Estimates · 2023

Income distribution context

Household income distribution - Gillespie, IL Gillespie, IL's reported median household income shown against the U.S. national quintile-share pattern (not Gillespie, IL-specific quintile data). The Lorenz curve traces the national cumulative income share against cumulative population share, perfect equality is the diagonal; observed inequality bows below. $ Household Income Distribution Gillespie, IL median $76,806/yr, vs. U.S. national quintile pattern QUINTILE SHARE OF AGGREGATE INCOME Lowest 20% 3.4% Second 20% 9.2% Middle 20% 15.1% Fourth 20% 23.2% Top 20% 49.1% LORENZ CURVE cumulative income vs. population 100% 0% 100% pop. 0%
Gillespie, IL's median household income (Census ACS 5-year estimate) plotted against the U.S. national income-quintile distribution pattern for context; the quintile shares and Lorenz curve are national figures, not computed specifically for Gillespie, IL. Diagonal = perfect equality.

Key socioeconomic indicators

Bachelor's degree or higher (adults 25+) 18.6%

Census ACS S1501, educational attainment

Poverty rate (households below FPL) 13.5%

Census ACS S1701, poverty status

Labor force participation (adults 16+) 56.7%

Census ACS S2301, share of working-age residents in the labor force

Population
3,118
Median Income
$76,806
Median Home Value
$89,500
Median Age
44.7
Poverty Rate
13.5%
Labor force participation
56.7%
Bachelor's Degree+
18.6%

Schools

Total Schools
3
Public schools in this city

Population Change

Annual U.S. Census Bureau Population Estimates Program (PEP) estimates, 2020–2025

See the fastest-growing cities →
3,050 residents3,100 residents3,150 residents3,200 residents 202020212022202320242025 3,166 residents 3,083 residents ▼ -2.6%
Gillespie's Census PEP population estimates, 2020–2025.

Housing Supply

Census Bureau Building Permits Survey (BPS) - annual residential permits authorized

🏗️ Low Activity
Total Permits (2024)
3
housing units authorized
Single-Family
3
detached homes
Multifamily
0
apartments & condos
Supply Intensity
1
permits per 1,000 residents

5-Year Permit Trend (2019–2024)

Year Total
2019 0
2020 22
2021 2
2022 0
2023 1
2024 3

Commute Patterns

How workers travel to work, Census ACS 2023

Drive Alone
84.5%
Carpool
3.3%
Public Transit
0.0%
Walk
0.0%
Work from Home
12.2%

Based on 1,349 workers 16 and over.

Monthly Utility Costs

State-average estimates for Illinois - EIA 2023 residential energy data

Electricity
$100
avg/month
Natural Gas
$90
avg/month
Water & Sewer
$50
avg/month
Total Utilities
$240
estimated/month

Estimates reflect Illinois state averages. Actual costs vary by home size, usage, and local rates. Source: U.S. Energy Information Administration (EIA) 2023.

Living Costs & Risk

Cost of living is a Illinois state average from BEA; rent and hazard risk are county-level figures from HUD and FEMA for the county Gillespie sits in

Cost of Living Index
100.0
Near Average
US average = 100 · BEA RPP 2024
Typical 2-BR Rent
$916/mo
HUD Fair Market Rent
County-level FMR estimate
Natural Hazard Risk
79.9 / 100
High
FEMA NRI composite score (county)

Similar Cities in Illinois

North Barrington
3,113 people
Carlyle
3,134 people
Knoxville
3,137 people
East Dundee
3,156 people
Momence
3,076 people
Holiday Shores
3,162 people

Cities of a Similar Size Nationwide

Population-matched peers from other states, closest to Gillespie's 3,118 residents (Census ACS 5-Year 2023).

Iuka, MS
3,118 people
La Salle, CO
3,119 people
Southern Shores, NC
3,119 people
Hollywood Park, TX
3,119 people
Choccolocco, AL
3,120 people
Woodbury Heights, NJ
3,116 people

Cities with a Similar Household Income Nationwide

Median-household-income-matched peers from other states, closest to Gillespie's $76,806 (Census ACS 5-Year 2023, table B19013).

Coatesville, IN
$76,806 median income
Simms, OK
$76,817 median income
Friesland, WI
$76,818 median income
Elverson, PA
$76,823 median income
Rock, KS
$76,786 median income
College, AK
$76,831 median income

Race & Ethnicity Composition

Race and ethnicity - Gillespie, IL Race categories sum to one hundred percent per Census methodology. Hispanic or Latino is shown separately as an ethnicity overlay; it cuts across all race categories per OMB Directive 15. Race & Ethnicity Composition Gillespie, IL - Census ACS, OMB race + ethnicity categories RACE, sums to 100% 93.2% 6.5% ETHNICITY, Hispanic or Latino (any race) 0.9% White 93.2% Black or African American 0.0% Asian 0.0% American Indian 0.0% Native Hawaiian 0.0% Some other race 0.3% Two or more races 6.5% Per OMB Directive 15: Hispanic/Latino ethnicity is reported separately from the race categories.
Race categories sum to 100%. Hispanic or Latino ethnicity is reported separately and cuts across race per Census/OMB methodology.

City-level race and ethnicity, Census ACS 5-year 2023 (tables B02001, B03001), OMB Directive 15 categories.

How Gillespie compares to nearby Illinois cities

Population + median household income, sourced from Census Bureau ACS 5-year B01001 (population) and B19013 (median household income).

City Population Median Household Income
Gillespie (this city) 3,118 $76,806
North Barrington 3,113 $216,250
Carlyle 3,134 $67,083
Knoxville 3,137 $80,385
Census ACS 5-year FIPS IL NCES CCD Census BPS 2024 OMB Bulletin 23-01

What do people ask about Gillespie, IL?

What is the population of Gillespie, IL? +

The population of Gillespie, IL stands at 3,118 according to U.S. Census Bureau ACS 2023 estimates.

What is the median household income in Gillespie, IL? +

In Gillespie, the typical household earns $76,806 per year, based on Census ACS 2023 data.

What is the cost of living in Gillespie? +

BEA does not publish a city-level cost-of-living figure for Gillespie; the closest available measure is the Illinois state average, a cost of living index of 100.0 (U.S. average = 100), rated "Near Average" based on BEA Regional Price Parities 2024 data. Costs within Illinois vary by metro area.

What is the median home value in Gillespie, IL? +

A typical home in Gillespie is worth $89,500, according to Census ACS 2023 estimates.

Source: U.S. Census Bureau ACS 5-Year 2023, NCES CCD, Census BPS 2024, Census ACS B08301/B08136, U.S. Energy Information Administration (EIA) 2023, BEA Regional Price Parities 2024, HUD Fair Market Rents 2026, FEMA National Risk Index.

Read our methodology - how this data is sourced, computed, and verified.

Primary sources: Census ACS, FBI UCR, NOAA Climate Normals, NCES.

Citation & verification links Data sourced from the U.S. Census Bureau. See our methodology for details. Retrieved and formatted by PlainCities

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Every figure on PlainCities is rendered directly from Census ACS source data, no number is typed in by an editor. This page draws directly on Census ACS source data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error.