Viola, IL Profile: Facts & Data

Viola, Illinois - Basic Facts

The Village of Viola had a population of 833 as of July 1, 2025.

The primary coordinate point for Viola is located at latitude 41.2031 and longitude -90.5871 in Mercer County. The formal boundaries for the Village of Viola encompass a land area of 0.84 sq. miles and a water area of 0.01 sq. miles. Mercer County is in the Central time zone (GMT -6).

The Village of Viola has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

The Village of Viola is located within Township of Greene, a minor civil division (MCD) of Mercer County.

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Viola, IL Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	833 (100%)
Population in Households	833 (100.0%)
Population in Families	636 (76.4%)
Population in Group Quarters¹	0
Population Density	994
Diversity Index²	22


INCOME
Median Household Income	$73,552
Average Household Income	$88,181
% of Income for Mortgage⁴	12%
Per Capita Income	$40,439
Wealth Index⁵	67
Socioeconomic Status Index⁶	Moderate (52.8)

HOUSING
Total HU (Housing Units)	433 (100%)
Owner Occupied HU	317 (73.2%)
Renter Occupied HU	65 (15.0%)
Vacant Housing Units	51 (11.8%)
Median Home Value	$137,500
Average Home Value	$173,730
Housing Affordability Index³	166

HOUSEHOLDS
Total Households	382
Average Household Size	2.18
Family Households	231
Average Family Size	3.00

HOUSING

Total HU (Housing Units)

433 (100%)

Owner Occupied HU

317 (73.2%)

Renter Occupied HU

65 (15.0%)

Vacant Housing Units

51 (11.8%)

Median Home Value

$137,500

Average Home Value

$173,730

Housing Affordability Index³

166

HOUSEHOLDS

Total Households

382

Average Household Size

2.18

Family Households

231

Average Family Size

3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	-0.80%	-0.63%
Households	0.40%	-0.05%
Families		1.10%
Median Household Income		1.41%
Per Capita Income		1.87%
Owner Occupied HU		0.06%

GROWTH RATE / YEAR

2020-2025

2025-2030

Population

-0.80%

-0.63%

Households

0.40%

-0.05%

Families

1.10%

Median Household Income

1.41%

Per Capita Income

1.87%

Owner Occupied HU

0.06%

Viola, IL - Peer Comparisons by Rank and Percentile

The table below compares Viola to the other 1,461 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description	Rank	Percentile
Total Population	# 736	50th
Population Density	# 692	53rd
Median Household Income	# 802	45th
Housing Affordability Index	# 1116	76th
Per Capita Income	# 663	55th
Diversity Index	# 708	52nd

Variable Description

Rank

Percentile

Total Population

# 736

50th

Population Density

# 692

53rd

Median Household Income

# 802

45th

Housing Affordability Index

# 1116

76th

Per Capita Income

# 663

55th

Diversity Index

# 708

52nd

Illinois Census Data Comparison Tool

Viola, IL Profile: Facts & Data

Viola, Illinois - Basic Facts

Viola, IL Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Viola, IL - Peer Comparisons by Rank and Percentile

Viola, IL - Most Popular Things to Do

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Mercer County