Altamont, IL Profile: Facts, Map & Data


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Altamont, Illinois - Basic Facts

The City of Altamont had a population of 2,303 as of July 1, 2017. Altamont ranks in the lower quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Altamont is located at latitude 39.0572 and longitude -88.7475 in Effingham County. The formal boundaries for the City of Altamont (see map below) encompass a land area of 1.41 sq. miles and a water area of 0 sq. miles. Effingham County is in the Central time zone (GMT -6). The elevation is 620 feet.

The City of Altamont (GNIS ID: 2393932) 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 Altamont is located within Township of Mound, a minor civil division (MCD) of Effingham County.

Beneath the boundary map are tables with Altamont population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2017.

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City of Altamont, IL Boundary Map

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Boundary Maps: Township of Mound | Effingham County | Illinois Counties

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Altamont, IL Data & Demographics (As of July 1, 2017)


Total Population 2,303
Daytime Population: Workers 1,064
Daytime Population: Residents 1,211
Total Daytime Population (TDP) 2,275
Ratio TDP/Total Population1 0.99
Population in Households 2,255
Population in Familes 1,813
Population in Group Qrtrs 48
Population Density2 1,637
Diversity Index3 4


Median Household Income $45,639
Average Household Income $56,254
Per Capita Income $22,650


Total Housing Units 1,000 (100%)
Owner Occupied HU 674 (67.4%)
Renter Occupied HU 250 (25.0%)
Vacant Housing Units 76 ( 7.6%)
Median Home Value $88,899
Average Home Value $117,756


Total Households 924
Average Household Size 2.44
Family Households 595
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. 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 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.


2010-2017 2017-2022
Population -0.1% -0.01%
Households -0.01% 0.04%
Families -0.02% -0.17%
Median Household Income   1.72%
Per Capita Income   2.47%

Altamont, IL - Peer Comparisons by Rank and Percentile

The table below compares Altamont to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2017 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 # 482 65th
Population Density # 407 70th
Diversity Index # 1309 4th
Median Household Income # 976 29th
Per Capita Income # 1088 21st

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

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