Clay City, IN Profile: Facts & Data


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Clay City, Indiana - Basic Facts

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The Town of Clay City had a population of 837 as of July 1, 2021. Clay City ranks in the lower quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Indiana. See peer rankings below.

The primary coordinate point for Clay City is located at latitude 39.2767 and longitude -87.1128 in Clay County. The formal boundaries for the Town of Clay City encompass a land area of 0.54 sq. miles and a water area of 0 sq. miles. Clay County is in the Eastern time zone (GMT -5). The elevation is 591 feet.

The Town of Clay City 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 Town of Clay City is located within Township of Harrison, a minor civil division (MCD) of Clay County.

Alternate Unofficial Names for Clay City: Markland.

Jump to... (On This Page!)
  1. Clay City 2021 Demographic Data
  2. Growth Rates for Clay City (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Indiana Research Tools (Easy Tools & Current Data)
  3. Indiana Data Comparison Tool - 2021 Demographics

Clay City, IN Data & Demographics (As of July 1, 2021)


Total Population 837 (100%)
Population in Households 837 (100.0%)
Population in Families 690 (82.4%)
Population in Group Quarters1 0
Population Density 1,553
Diversity Index2 4


Median Household Income $43,481
Average Household Income $51,620
% of Income for Mortgage4 7%
Per Capita Income $21,431
Wealth Index5 39


Total HU (Housing Units) 434 (100%)
Owner Occupied HU 244 (56.2%)
Renter Occupied HU 108 (24.9%)
Vacant Housing Units 82 (18.9%)
Median Home Value $75,000
Average Home Value $85,537
Housing Affordability Index3 349


Total Households 352
Average Household Size 2.38
Family Households 235
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.


2010-2021 2021-2026
Population -0.19% -0.29%
Households -0.17% -0.29%
Families -0.19% -0.43%
Median Household Income   1.32%
Per Capita Income   1.93%
Owner Occupied HU   0.08%

Clay City, IN - Peer Comparisons by Rank and Percentile

The table below compares Clay City to the other 679 incorporated cities, towns and CDPs in Indiana by rank and percentile using July 1, 2021 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 # 370 46th
Population Density # 254 63rd
Median Household Income # 591 13th
Housing Affordability Index # 623 92nd
Per Capita Income # 615 10th
Diversity Index # 660 3rd

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

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