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Grantfork, IL
Key Indicators
A quick look at key numbers
Population
459
Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates
Median Age
35.8
years ∙ half population younger than 35.8, half older
Diversity Index
7.6%
chance two random people differ in race and ethnicity
Nativity
1.1%
foreign-born population
Geographic Context
Location, size, and surroundings
About
Grantfork is a village within Madison County, Illinois, United States.
Co-ordinates
DEC38.826398° N, 89.666550° W
DMS38° 49′ 35.03″ N, 89° 39′ 59.58″ W
Population Density & area
1,247/sq mi
(481.6/km²)
Demographics & Living
Who lives here, how households are formed, and community composition
Population Composition
Key characteristics of the population
Sex Distribution
50.1%
male
Male
50.1%
Female
49.9%
males per 100 females
Grantfork
100.4
Madison County
95.6
Illinois
97.7
Nativity
1.1%
foreign-born population
% Foreign-born
Grantfork
1.1%
Madison County
2.2%
Illinois
14.7%
Age Distribution
How the population is spread across age groups
Median Age
35.8
years ∙ half population younger than 35.8, half older
Dependency ratio
58.3
dependents per 100 working-age adults
Grantfork
58.3
Madison County
66.2
Illinois
63.5
AGE DISTRIBUTION
Distribution of age group
Median age
| Grantfork | Madison County | Illinois | |
|---|---|---|---|
| Age Group | |||
| Children (Under 18) | 29.2% | 21.3% | 21.8% |
| Working age (18-64) | 63.2% | 60.2% | 61.2% |
| Senior (65+) | 7.6% | 18.5% | 17% |
| Dependency ratio | |||
| Total dependency ratio | 58.3 | 66.2 | 63.5 |
| Child dependency ratio | 46.2 | 35.4 | 35.7 |
| Old-age dependency ratio | 12.1 | 30.8 | 27.8 |
Racial & Ethnic Composition
Racial and ethnic makeup and how it compares
Race & Ethnicity
Note: White, Black, and Asian refer to individuals belonging to a single race and not of Hispanic origin. Hispanics may be of any race.
Diversity Index
7.6%
chance two random people differ in race and ethnicity
Grantfork
7.6%
Madison County
32.1%
Illinois
60.5%
Note: The Diversity Index (DI), based on the Blau Index, measures the probability that two randomly selected individuals differ in race and ethnicity. Values range from 0 (no diversity) to 1 (high diversity) and are shown as percentages.
RACIAL & ETHNIC COMPOSITION
Race & Ethnicity
Percentage of Grantfork population
| Grantfork | Madison County | Illinois | |
|---|---|---|---|
| Hispanic or Latino | 0.4% | 4.3% | 18.8% |
| Mexican | 0% | 2.9% | 14.4% |
| Puerto Rican | 0.4% | 0.2% | 1.6% |
| Cuban | 0% | 0.1% | 0.3% |
| Other Hispanic / Latino | 0% | 1.1% | 2.5% |
| Not Hispanic or Latino | 99.6% | 95.7% | 81.2% |
| One race | 97% | 90.7% | 77.8% |
| White | 96.1% | 81.8% | 58.1% |
| Black or African American | 0% | 7.7% | 13.3% |
| American Indian and Alaska Native | 0.2% | 0.1% | 0.1% |
| Asian | 0.7% | 0.8% | 5.9% |
| Native Hawaiian and Other Pacific Islander | 0% | 0% | 0% |
| Some Other Race | 0% | 0.2% | 0.4% |
| Two or more races (Multiracial) | 2.6% | 5% | 3.4% |
Household & Families Composition
Household size, type, and family structure
Household structure
77.6%
family
Family
77.6%
Non family
22.4%
% family households
Grantfork
77.6%
Madison County
62.7%
Illinois
62.2%
Average household size
2.78
persons per household
Household & Family COMPOSITION
Households
Percentage of Grantfork population
| Grantfork | Madison County | Illinois | |
|---|---|---|---|
| Total households | 165 | 110,134 | 5,036,449 |
| Average houshold size | 2.78 | 2.35 | 2.46 |
| Family households | 128 | 69,017 | 3,130,978 |
| Average family size | 3.19 | 2.94 | 3.14 |
| Married couple family | 108 | 50,565 | 2,282,435 |
| Other families | 20 | 18,452 | 848,543 |
| Male householder | 5 | 5,502 | 248,521 |
| Female householder | 15 | 12,950 | 600,022 |
| Non-family households | 37 | 41,117 | 1,905,471 |
| One-person households | 32 | 34,014 | 1,569,881 |
| Male householder | 24 | 15,970 | 712,191 |
| Senior (65+) living alone | 11 | 5,187 | 210,051 |
| Female householder | 8 | 18,044 | 857,690 |
| Senior (65+) living alone | 7 | 10,137 | 417,870 |
| Other living arrangements | 5 | 7,103 | 335,590 |
Housing Profile
Housing stock, ownership, rentals, and cost burdens
Total housing units
172
housing units
Grantfork
172
Madison County
119,168
Illinois
5,457,452
Occupancy status
95.9%
occupied
Occupied
95.9%
Vacant
4.1%
vacancy rate
Grantfork
4.1%
Madison County
7.6%
Illinois
7.7%
Housing Characteristics
How the housing supply is structured and used
Types of Housing unit
95.3%
Single family houses
Median Year Built
1986
Half of houses were built before 1986, and half after.
Note: Median year built reflects occupied units only; distribution includes all units.
Housing Characteristics
Units, rooms & bedrooms
Physical characteristics of housing units
| Grantfork | Madison County | Illinois | |
|---|---|---|---|
| Rooms per unit | |||
| Median rooms | 6.3 | 5.7 | 5.6 |
| 1–3 rooms | 2.3% | 8.2% | 14.6% |
| 4–6 rooms | 52.3% | 56.5% | 50.9% |
| 7+ rooms | 45.4% | 35.4% | 34.6% |
| Bedrooms | |||
| No bedroom / studio | 0% | 1.4% | 3.1% |
| 1 bedroom | 1.2% | 7.3% | 11.5% |
| 2 bedrooms | 9.3% | 30.3% | 27.7% |
| 3 bedrooms | 57.6% | 41.5% | 35.8% |
| 4+ bedrooms | 32% | 19.4% | 21.7% |
| At a glance | |||
| Median year built | 1986 | 1972 | 1971 |
| Total housing units | 172 | 119,168 | 5,457,452 |
Occupancy Profile
Who is inside and how they use it
Homeownership
98.2%
owners
Renter-occupied
1.8%
Owner-occupied
98.2%
homeownership rate
Grantfork
98.2%
Madison County
74.2%
Illinois
67.1%
Average household size
2.79
Owner-occupied
2.33
Renter-occupied
owner-occupied average size
Grantfork
2.79
Madison County
2.45
Illinois
2.62
Housing Characteristics
Occupied unit characteristics
Tenure, crowding, and utilities
| Grantfork | Madison County | Illinois | |
|---|---|---|---|
| Total occupied units | 165 | 110,134 | 5,036,449 |
| Year moved in | |||
| 2020 or later | 12.1% | 21.3% | 23.3% |
| 2010 to 2019 | 38.2% | 38.2% | 38.1% |
| 2000 to 2009 | 30.3% | 17.4% | 17.3% |
| 1999 or earlier | 19.4% | 23% | 21.3% |
| Occupants per room | |||
| 1.00 or fewer | 100% | 99% | 97.5% |
| 1.01 to 1.50 | 0% | 0.7% | 1.6% |
| 1.51 or more | 0% | 0.3% | 0.8% |
| Vehicles availability | |||
| No vehicles | 3% | 5.7% | 11% |
| 1 vehicle | 18.2% | 32.8% | 35.7% |
| 2 vehicles | 51.5% | 39.4% | 35.1% |
| 3 or more vehicles | 27.3% | 22.2% | 18.3% |
| House heating fuel used | |||
| Gas | 90.3% | 66.4% | 79.5% |
| Electricity | 9.7% | 32.2% | 18.6% |
| Solar | 0% | 0.1% | 0.1% |
| Fuel oil, kerosene etc | 0% | 0.1% | 0.1% |
| All other fuels | 0% | 0.7% | 0.8% |
| No fuel used | 0% | 0.4% | 0.8% |
| Selected characteristics | |||
| Lacking complete plumbing | 1.2% | 0.3% | 0.3% |
| Lacking complete kitchen | 1.2% | 1.2% | 0.8% |
| No telephone service available | 0% | 0.5% | 0.8% |
Housing Value
What owner-occupied units are worth
Median home value
$167,900
owner-occupied units
Housing Cost Burden
18.1%
of homeowners with a mortgage are cost-burdened
Note: Households spending 30% or more of their income on housing costs are considered cost-burdened.
Financial characteristics
Property value and housing costs
Tenure, crowding, and utilities
| Grantfork | Madison County | Illinois | |
|---|---|---|---|
| Property value | |||
| Median Value | $167,900 | $173,000 | $263,300 |
| Under $100,000 | 27.2% | 22% | 13.7% |
| $100,000 - $200,000 | 27.2% | 34.8% | 21.5% |
| $200,000 - $300,000 | 31.5% | 21% | 22.3% |
| $300,000 - $500,000 | 12.3% | 16.7% | 27.7% |
| $500,000 - $1,000,000 | 1.9% | 4.7% | 12.1% |
| $1,000,000 and more | 0% | 0.8% | 2.7% |
| Owner-occupied households | |||
| With a mortgage | 71.6% | 59.9% | 60.8% |
| Without a mortgage | 28.4% | 40.1% | 39.2% |
| Median monthly owner costs | |||
| With a mortgage | $1,831 | $1,511 | $1,987 |
| Without a mortgage | $750 | $653 | $792 |
| Gross rent | |||
| Median rent | $— | $1,024 | $1,274 |
Education Profile
How educated is the community and how education pays off
Adults with a college degree
47.3%
of adults 25+ with a bachelor's degree or higher
Grantfork
47.3%
Madison County
31%
Illinois
37.8%
Adults without a high school diploma
1.4%
of adults (25+) without a high school diploma
Grantfork
1.4%
Madison County
6.1%
Illinois
9.6%
School Enrollment
Who is enrolled in school and at what level
School enrollment
133
population (age 3+) enrolled in school
College-going rate (18-24 yr olds)
18.2%
of 18-24-year-olds in college or graduate school
Enrollment & school type
Enrollment levels, college-going rate, and public vs private school split
Population 3+ currently enrolled in a school
| Grantfork | Madison County | Illinois | |
|---|---|---|---|
| Total enrolled (age 3+) | 133 | 63,688 | 3,051,569 |
| Nursery / preschool | 1.5% | 8.2% | 6.3% |
| K–12 | 87.2% | 64.9% | 67.3% |
| Kindergarten | 8.3% | 4.1% | 4.9% |
| Elementary: Grades 1–4 | 24.8% | 18.8% | 19.5% |
| Elementary: Grades 5–8 | 24.1% | 20.5% | 20.8% |
| High School: Grades 9–12 | 30.1% | 21.5% | 22.1% |
| College or graduate school | 11.3% | 26.9% | 26.4% |
| College, undergraduate | 9.8% | 21.8% | 19.8% |
| Graduate, professional school | 1.5% | 5.1% | 6.6% |
| College-going rate · 18-24 yr olds | 18.2% | 45.8% | 41.4% |
| School type | |||
| Public school | 97% | 81% | 80.5% |
| Private school | 3% | 19% | 19.5% |
Education Attainment by Level & Gender
What is the highest level of education completed among adults
Education attainment
281
population 25 years and over
Attainment by gender
Male vs Female
Adults (25+) · Share within each education level
Educational Attainment Overview
Distribution and key education attainment rates for adults (25+)
Highest credential completed · adults 25+
| Grantfork | Madison County | Illinois | |
|---|---|---|---|
| Population (25+) | 281 | 184,756 | 8,767,004 |
| Less than 9th grade | 0.7% | 1.6% | 4.6% |
| 9th–12th, no diploma | 0.7% | 4.5% | 5% |
| High school diploma or GED | 18.5% | 28.5% | 25.1% |
| Some college, no degree | 18.1% | 23.5% | 19.2% |
| Associate's degree | 14.6% | 10.9% | 8.3% |
| Bachelor's degree or higher | 47.3% | 31% | 37.8% |
| Bachelor's degree | 35.2% | 19.8% | 22.6% |
| Graduate or professional | 12.1% | 11.2% | 15.3% |
| High School or higher | 98.6% | 93.9% | 90.5% |
Earnings by education level
percentage as applicable
Median Earnings
$48,068
Median earnings for adults 25+, by level
Poverty Rate
1.5%
for ages 25+, with bachelors degree or higher
Outcomes by Education Level
Earnings and poverty rates across education levels (25+)
Adults 25+
| Grantfork | Madison County | Illinois | |
|---|---|---|---|
| Median earnings | |||
| Population 25+, with earnings | $48,068 | $53,993 | $55,582 |
| Less than high school graduate | $— | $30,737 | $34,655 |
| High school graduate (includes equivalency) | $40,000 | $41,619 | $40,965 |
| Some college or associate's degree | $54,375 | $51,129 | $47,813 |
| Bachelor's degree | $35,658 | $68,585 | $73,326 |
| Graduate or professional degree | $152,763 | $81,897 | $91,623 |
| Poverty rates | |||
| Less than high school graduate | 0% | 26.3% | 21.6% |
| High school graduate (includes equivalency) | 3.8% | 12.1% | 14.4% |
| Some college or associate's degree | 8.7% | 9.6% | 9.9% |
| Bachelor's degree or higher | 1.5% | 3.5% | 4.5% |
About Neilsberg Research
Neilsberg Research team are data scientists with expertise in processing, analysis and visualization of big data helping small businesses make right decisions.
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