Mount Sterling, IL Profile: Facts & Data


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Mount Sterling, Illinois - Basic Facts

The City of Mount Sterling had a population of 2,099 as of July 1, 2020. Mount Sterling ranks in the upper quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Illinois. See peer rankings below.

The primary coordinate point for Mount Sterling is located at latitude 39.9873 and longitude -90.7635 in Brown County. The formal boundaries for the City of Mount Sterling encompass a land area of 1.11 sq. miles and a water area of 0 sq. miles. Brown County is in the Central time zone (GMT -6). The elevation is 725 feet.

The City of Mount Sterling (GNIS ID: 2395125) 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 Mount Sterling is located within Township of Mount Sterling, a minor civil division (MCD) of Brown County.


Mount Sterling, IL Data & Demographics (As of July 1, 2020)


Total Population 2,099 (100%)
Population in Households 1,766 (84.1%)
Population in Families 1,348 (64.2%)
Population in Group Quarters1 333 (15.9%)
Population Density 1,894
Diversity Index2 31


Median Household Income $55,737
Average Household Income $64,256
% of Income for Mortgage4 6%
Per Capita Income $26,472
Wealth Index5 51


Total HU (Housing Units) 1,001 (100%)
Owner Occupied HU 672 (67.1%)
Renter Occupied HU 254 (25.4%)
Vacant Housing Units 74 ( 7.4%)
Median Home Value $84,925
Average Home Value $103,943
Housing Affordability Index3 350


Total Households 927
Average Household Size 1.91
Family Households 538
Average Family Size 3
  1. 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.
  2. 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.
  3. 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.
  4. 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).
  5. 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.


2010-2020 2020-2025
Population 0.35% -0.03%
Households 0.31% -0.06%
Families 0.47% -0.19%
Median Household Income   0.75%
Per Capita Income   1.38%
Owner Occupied HU   0.03%


Mount Sterling, IL - Peer Comparisons by Rank and Percentile

The table below compares Mount Sterling to the other 1,369 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2020 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 # 499 64th
Population Density # 299 78th
Median Household Income # 736 46th
Housing Affordability Index # 1301 95th
Per Capita Income # 912 33rd
Diversity Index # 373 73rd

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

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