Oglesby, IL Profile: Facts & Data

Oglesby, Illinois - Basic Facts

The City of Oglesby had a population of 3,515 as of July 1, 2025.

The primary coordinate point for Oglesby is located at latitude 41.2953 and longitude -89.0595 in LaSalle County. The formal boundaries for the City of Oglesby encompass a land area of 4.06 sq. miles and a water area of 0 sq. miles. LaSalle County is in the Central time zone (GMT -6).

The City of Oglesby 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 City of Oglesby is located within Township of LaSalle, a minor civil division (MCD) of LaSalle County.

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

POPULATION
Total Population	3,515 (100%)
Population in Households	3,515 (100.0%)
Population in Families	2,623 (74.6%)
Population in Group Quarters¹	0
Population Density	704
Diversity Index²	33


INCOME
Median Household Income	$68,296
Average Household Income	$86,382
% of Income for Mortgage⁴	14%
Per Capita Income	$39,689
Wealth Index⁵	72
Socioeconomic Status Index⁶	Moderate (52.1)

HOUSING
Total HU (Housing Units)	1,797 (100%)
Owner Occupied HU	1,211 (67.4%)
Renter Occupied HU	404 (22.5%)
Vacant Housing Units	182 (10.1%)
Median Home Value	$150,048
Average Home Value	$168,082
Housing Affordability Index³	140

HOUSEHOLDS
Total Households	1,615
Average Household Size	2.18
Family Households	942
Average Family Size	3.00

HOUSING

Total HU (Housing Units)

1,797 (100%)

Owner Occupied HU

1,211 (67.4%)

Renter Occupied HU

404 (22.5%)

Vacant Housing Units

182 (10.1%)

Median Home Value

$150,048

Average Home Value

$168,082

Housing Affordability Index³

140

HOUSEHOLDS

Total Households

1,615

Average Household Size

2.18

Family Households

942

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	-1.03%	-0.41%
Households	0.07%	0.09%
Families		-0.65%
Median Household Income		2.42%
Per Capita Income		2.18%
Owner Occupied HU		0.47%

GROWTH RATE / YEAR

2020-2025

2025-2030

Population

-1.03%

-0.41%

Households

0.07%

0.09%

Families

-0.65%

Median Household Income

2.42%

Per Capita Income

2.18%

Owner Occupied HU

0.47%

Oglesby, IL - Peer Comparisons by Rank and Percentile

The table below compares Oglesby 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	# 399	73rd
Population Density	# 905	38th
Median Household Income	# 928	37th
Housing Affordability Index	# 869	59th
Per Capita Income	# 707	52nd
Diversity Index	# 483	67th

Variable Description

Rank

Percentile

Total Population

# 399

73rd

Population Density

# 905

38th

Median Household Income

# 928

37th

Housing Affordability Index

# 869

59th

Per Capita Income

# 707

52nd

Diversity Index

# 483

67th

Illinois Census Data Comparison Tool

Oglesby, IL Profile: Facts & Data

Oglesby, Illinois - Basic Facts

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

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Oglesby, IL - Peer Comparisons by Rank and Percentile

Oglesby, IL - Most Popular Things to Do

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LaSalle County