Thayer, IL Profile: Facts, Map & Data


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Thayer, Illinois - Basic Facts

The Village of Thayer had a population of 689 as of July 1, 2016.

The primary coordinate point for Thayer is located at latitude 39.5404 and longitude -89.7579 in Sangamon County. The formal boundaries for the Village of Thayer (see map below) encompass a land area of 0.61 sq. miles and a water area of 0 sq. miles. Sangamon County is in the Central time zone (GMT -6). The elevation is 643 feet.

The Village of Thayer (GNIS ID: 2399964) 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 Thayer is located within Township of Auburn, a minor civil division (MCD) of Sangamon County.

Beneath the boundary map are tables with Thayer population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Neighborhood Data

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Village of Thayer, IL Boundary Map

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Boundary Maps: Township of Auburn | Sangamon County | Illinois Counties

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Thayer, IL Data & Demographics (As of July 1, 2016)


Total Population 689
Population in Households 689
Population in Familes 600
Population in Group Qrtrs 0
Population Density1 1,138
Diversity Index2 10


Total Households 283
Average Household Size 2.43
Family Households 212
Average Family Size 3


Total Housing Units 314 (100%)
Owner Occupied HU 239 (76.1%)
Renter Occupied HU 44 (14.0%)
Vacant Housing Units 31 ( 9.9%)
Median Home Value $116,379
Average Home Value $122,699


Median Household Income $77,985
Average Household Income $82,895
Per Capita Income $31,707
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.09% 0.03%
Households 0.0% 0.0%
Families 1.68% -0.09%
Median Household Income   0.84%
Per Capita Income   1.13%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood that two persons, chosen at random from the same area, belong to different race 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Thayer, IL - Peer Comparisons by Rank and Percentile

The table below compares Thayer to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2016 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 # 821 40th
Population Density1 # 678 51st
Diversity Index2 # 808 41st
Median Household Income # 162 88th
Per Capita Income # 283 79th

Additional comparisons and rankings can be made with a VERY EASY TO USE Illinois Census Data Comparison Tool.

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