Aviston, IL

Village in Clinton County, IL, US

By Neilsberg Research

Last updated May 1, 2026

Key Indicators

A quick look at key numbers

Population

2,387

Source: U.S. Census Bureau American Community Survey (ACS) 2020-2024 5-Year Estimates

Median Age

31.8

years ∙ half population younger than 31.8, half older

Diversity Index

25.3%

chance two random people differ in race and ethnicity

Nativity

foreign-born population

99%Native

1% Foreign-born

Geographic Context

Location, size, and surroundings

About

Aviston is a village within Clinton County, Illinois, United States.

Location

Village in Clinton County, IL, US

Co-ordinates

DEC38.625967° N, 89.613424° W

DMS38° 37′ 33.48″ N, 89° 36′ 48.33″ W

Population Density & area

1,492/sq mi (576.6/km²)

Total Area

1.6 sq mi (4.14 km²)

Land Area

1.6 sq mi (4.14 km²) · 100%

Water Area

0 sq mi (0 km²) · 0%

Demographics & Living

Who lives here, how households are formed, and community composition

Population Composition

Key characteristics of the population

Sex Distribution

46.3% male

Male 46.3%

Female 53.7%

males per 100 females

Aviston 86

Clinton County 107.5

Illinois 97.7

Nativity

foreign-born population

99%Native

1% Foreign-born

% Foreign-born

Aviston 1%

Clinton County 2.3%

Illinois 14.7%

Age Distribution

How the population is spread across age groups

Median Age

31.8

years ∙ half population younger than 31.8, half older

Aviston

31.8

Clinton County

41.5

Illinois

Dependency ratio

79.2

dependents per 100 working-age adults

Aviston 79.2

Clinton County 67.8

Illinois 63.5

AGE DISTRIBUTION

Distribution of age group

Median age

	Aviston	Clinton County	Illinois
Age Group
Children (Under 18)	31.4%	21.6%	21.8%
Working age (18-64)	55.8%	59.6%	61.2%
Senior (65+)	12.8%	18.8%	17%
Dependency ratio
Total dependency ratio	79.2	67.8	63.5
Child dependency ratio	56.2	36.2	35.7
Old-age dependency ratio	23	31.6	27.8

Racial & Ethnic Composition

Racial and ethnic makeup and how it compares

Race & Ethnicity

White

85.5%

Black

0.3%

Asian

0.1%

Hispanic

12.5%

Other

1.6%

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

25.3%

chance two random people differ in race and ethnicity

Aviston 25.3%

Clinton County 18.5%

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 Aviston population

Racial and ethnic composition — Aviston vs Clinton County vs Illinois. Source: ACS 2020-2024 5-Year Estimates.
	Aviston	Clinton County	Illinois
Hispanic or Latino	12.5%	4.1%	18.8%
Mexican	7.2%	2.7%	14.4%
Puerto Rican	3.8%	0.4%	1.6%
Cuban	0%	0%	0.3%
Other Hispanic / Latino	1.4%	0.9%	2.5%
Not Hispanic or Latino	87.5%	95.9%	81.2%
One race	85.8%	93.9%	77.8%
White	85.5%	90.1%	58.1%
Black or African American	0.3%	3.1%	13.3%
American Indian and Alaska Native	0%	0.1%	0.1%
Asian	0.1%	0.6%	5.9%
Native Hawaiian and Other Pacific Islander	0%	0%	0%
Some Other Race	0%	0%	0.4%
Two or more races (Multiracial)	1.7%	2%	3.4%

Household & Families Composition

Household size, type, and family structure

Household structure

76.8% family

Family 76.8%

Non family 23.2%

% family households

Aviston 76.8%

Clinton County 66.8%

Illinois 62.2%

Average household size

2.75

persons per household

Aviston

2.75

Clinton County

2.39

Illinois

2.46

Household & Family COMPOSITION

Households

Percentage of Aviston population

	Aviston	Clinton County	Illinois
Total households	841	14,570	5,036,449
Average houshold size	2.75	2.39	2.46
Family households	646	9,728	3,130,978
Average family size	3.23	2.94	3.14
Married couple family	520	8,080	2,282,435
Other families	126	1,648	848,543
Male householder	42	593	248,521
Female householder	84	1,055	600,022
Non-family households	195	4,842	1,905,471
One-person households	180	4,124	1,569,881
Male householder	77	1,953	712,191
Senior (65+) living alone	0	709	210,051
Female householder	103	2,171	857,690
Senior (65+) living alone	59	1,416	417,870
Other living arrangements	15	718	335,590

Housing Profile

Housing stock, ownership, rentals, and cost burdens

Total housing units

886

housing units

Aviston 886

Clinton County 15,765

Illinois 5,457,452

Occupancy status

94.9% occupied

Occupied 94.9%

Vacant 5.1%

vacancy rate

Aviston 5.1%

Clinton County 7.6%

Illinois 7.7%

Housing Characteristics

How the housing supply is structured and used

Types of Housing unit

89.7%

Single family houses

89.7%

Apartments in multi-unit structures

9.4%

Mobile homes

0.9%

Boat, RV, van, etc

Median Year Built

1998

Half of houses were built before 1998, and half after.

Historic ∙ 1939 or earlier

Postwar & mid-century ∙ 1940 - 1969

20.2%

Late 20th century ∙ 1970 - 1999

31.9%

Modern ∙ 2000 or later

43.1%

Note: Median year built reflects occupied units only; distribution includes all units.

Housing Characteristics

Units, rooms & bedrooms

Physical characteristics of housing units

	Aviston	Clinton County	Illinois
Rooms per unit
Median rooms	5.8	5.8	5.6
1–3 rooms	7%	7.1%	14.6%
4–6 rooms	58.5%	58.2%	50.9%
7+ rooms	34.5%	34.6%	34.6%
Bedrooms
No bedroom / studio	2%	1.7%	3.1%
1 bedroom	4.4%	6.6%	11.5%
2 bedrooms	24.6%	23.9%	27.7%
3 bedrooms	45.9%	51.3%	35.8%
4+ bedrooms	23%	16.4%	21.7%
At a glance
Median year built	1998	1978	1971
Total housing units	886	15,765	5,457,452

Occupancy Profile

Who is inside and how they use it

Homeownership

81.7% owners

Renter-occupied 18.3%

Owner-occupied 81.7%

homeownership rate

Aviston 81.7%

Clinton County 80.3%

Illinois 67.1%

Average household size

3.01

Owner-occupied

1.58

Renter-occupied

owner-occupied average size

Aviston 3.01

Clinton County 2.46

Illinois 2.62

Housing Characteristics

Occupied unit characteristics

Tenure, crowding, and utilities

	Aviston	Clinton County	Illinois
Total occupied units	841	14,570	5,036,449
Year moved in
2020 or later	23.2%	17.7%	23.3%
2010 to 2019	37.7%	34.9%	38.1%
2000 to 2009	21.4%	19.4%	17.3%
1999 or earlier	17.7%	28%	21.3%
Occupants per room
1.00 or fewer	100%	97.9%	97.5%
1.01 to 1.50	0%	1.2%	1.6%
1.51 or more	0%	0.9%	0.8%
Vehicles availability
No vehicles	0.6%	3.2%	11%
1 vehicle	24.5%	26.6%	35.7%
2 vehicles	41.3%	38.6%	35.1%
3 or more vehicles	33.7%	31.7%	18.3%
House heating fuel used
Gas	71.4%	69.8%	79.5%
Electricity	27.5%	26.6%	18.6%
Solar	0.4%	0.2%	0.1%
Fuel oil, kerosene etc	0%	0.4%	0.1%
All other fuels	0.7%	2.2%	0.8%
No fuel used	0.1%	0.8%	0.8%
Selected characteristics
Lacking complete plumbing	0%	0.4%	0.3%
Lacking complete kitchen	0%	0.8%	0.8%
No telephone service available	0%	0.6%	0.8%

Housing Value

What owner-occupied units are worth

Median home value

$244,800

owner-occupied units

Median value(USD)

Aviston

$244,800

Clinton County

$192,400

Illinois

$263,300

Housing Cost Burden

12%

of homeowners with a mortgage are cost-burdened

% Cost-Burdened Households

Owners with a mortgage

12%

Owners without a mortgage

17.1%

Renters

21.7%

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

	Aviston	Clinton County	Illinois
Property value
Median Value	$244,800	$192,400	$263,300
Under $100,000	3.7%	17%	13.7%
$100,000 - $200,000	35.5%	36%	21.5%
$200,000 - $300,000	23.9%	25.6%	22.3%
$300,000 - $500,000	29.1%	18.3%	27.7%
$500,000 - $1,000,000	7.7%	2.9%	12.1%
$1,000,000 and more	0%	0.3%	2.7%
Owner-occupied households
With a mortgage	70.2%	55.9%	60.8%
Without a mortgage	29.8%	44.1%	39.2%
Median monthly owner costs
With a mortgage	$1,756	$1,490	$1,987
Without a mortgage	$825	$656	$792
Gross rent
Median rent	$963	$912	$1,274

Education Profile

How educated is the community and how education pays off

Adults with a college degree

42.3%

of adults 25+ with a bachelor's degree or higher

Aviston 42.3%

Clinton County 25.9%

Illinois 37.8%

Adults without a high school diploma

3.7%

of adults (25+) without a high school diploma

Aviston 3.7%

Clinton County 7.8%

Illinois 9.6%

School Enrollment

Who is enrolled in school and at what level

School enrollment

659

population (age 3+) enrolled in school

Nursery / Preschool

K–12

81.2%

College / Undergraduate

6.7%

Graduate / Professional

4.1%

College-going rate (18-24 yr olds)

43.8%

of 18-24-year-olds in college or graduate school

Aviston

43.8%

Clinton County

34.2%

Illinois

41.4%

Enrollment & school type

Enrollment levels, college-going rate, and public vs private school split

Population 3+ currently enrolled in a school

	Aviston	Clinton County	Illinois
Total enrolled (age 3+)	659	7,612	3,051,569
Nursery / preschool	8%	7.1%	6.3%
K–12	81.2%	75.9%	67.3%
Kindergarten	7.6%	9%	4.9%
Elementary: Grades 1–4	23.8%	23.7%	19.5%
Elementary: Grades 5–8	23.4%	20.1%	20.8%
High School: Grades 9–12	26.4%	23.2%	22.1%
College or graduate school	10.8%	17%	26.4%
College, undergraduate	6.7%	13.6%	19.8%
Graduate, professional school	4.1%	3.4%	6.6%
College-going rate · 18-24 yr olds	43.8%	34.2%	41.4%
School type
Public school	87.7%	81.2%	80.5%
Private school	12.3%	18.8%	19.5%

Education Attainment by Level & Gender

What is the highest level of education completed among adults

Education attainment

1,542

population 25 years and over

Total adults (25+)

Less than 9th grade

1.3%

9th-12th, no diploma

2.4%

HS graduate

17.3%

Some college no degree

18.1%

Associates degree

18.7%

Bachelors degree

28.7%

Graduate or professional degree

13.6%

Attainment by gender

Male vs Female

Adults (25+) · Share within each education level

% male · % female

Less than 9th grade

25% · 75%

9th-12th, no diploma

51.4% · 48.6%

HS graduate

37.2% · 62.8%

Some college no degree

71.3% · 28.7%

Associates degree

65.3% · 34.7%

Bachelors degree

35.1% · 64.9%

Graduate or professional degree

28.1% · 71.9%

Educational Attainment Overview

Distribution and key education attainment rates for adults (25+)

Highest credential completed · adults 25+

	Aviston	Clinton County	Illinois
Population (25+)	1,542	26,425	8,767,004
Less than 9th grade	1.3%	2.7%	4.6%
9th–12th, no diploma	2.4%	5.1%	5%
High school diploma or GED	17.3%	31.2%	25.1%
Some college, no degree	18.1%	18.9%	19.2%
Associate's degree	18.7%	16.3%	8.3%
Bachelor's degree or higher	42.3%	25.9%	37.8%
Bachelor's degree	28.7%	17.6%	22.6%
Graduate or professional	13.6%	8.3%	15.3%
High School or higher	96.3%	92.2%	90.5%

Earnings by education level

percentage as applicable

Median Earnings

$70,893

Median earnings for adults 25+, by level

Less than HS graduate

$—

HS graduate

$35,577

Some college or associates

$64,940

Bachelors degree

$85,625

Graduate or professional degree

$89,750

Poverty Rate

2.2%

for ages 25+, with bachelors degree or higher

Less than HS graduate

HS graduate

9.6%

Some college or associates

4.4%

Bachelors degree or higher

2.2%

Outcomes by Education Level

Earnings and poverty rates across education levels (25+)

Adults 25+

	Aviston	Clinton County	Illinois
Median earnings
Population 25+, with earnings	$70,893	$56,058	$55,582
Less than high school graduate	$—	$29,144	$34,655
High school graduate (includes equivalency)	$35,577	$44,074	$40,965
Some college or associate's degree	$64,940	$53,505	$47,813
Bachelor's degree	$85,625	$71,208	$73,326
Graduate or professional degree	$89,750	$79,744	$91,623
Poverty rates
Less than high school graduate	0%	28.1%	21.6%
High school graduate (includes equivalency)	9.6%	8.7%	14.4%
Some college or associate's degree	4.4%	4.7%	9.9%
Bachelor's degree or higher	2.2%	2.4%	4.5%

Insights for Aviston, by topic

Income By year By race By age By gender

Population By year By race By age By gender

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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