Delphi, IN Profile: Facts & Data


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Delphi, Indiana - Basic Facts

The City of Delphi had a population of 2,898 as of July 1, 2020. Delphi ranks in the upper 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 Delphi is located at latitude 40.5875 and longitude -86.675 in Carroll County. The formal boundaries for the City of Delphi encompass a land area of 2.73 sq. miles and a water area of 0 sq. miles. Carroll County is in the Eastern time zone (GMT -5). The elevation is 568 feet.

The City of Delphi (GNIS ID: 2394507) 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 Delphi is located within Township of Deer Creek, a minor civil division (MCD) of Carroll County.

Alternate Unofficial Names for Delphi: Carrollton.


Delphi, IN Data & Demographics (As of July 1, 2020)


Total Population 2,898 (100%)
Population in Households 2,809 (96.9%)
Population in Families 2,179 (75.2%)
Population in Group Quarters1 89 ( 3.1%)
Population Density 1,067
Diversity Index2 36


Median Household Income $43,290
Average Household Income $57,827
% of Income for Mortgage4 9%
Per Capita Income $22,632
Wealth Index5 50


Total HU (Housing Units) 1,315 (100%)
Owner Occupied HU 774 (58.9%)
Renter Occupied HU 368 (28.0%)
Vacant Housing Units 173 (13.2%)
Median Home Value $91,274
Average Home Value $114,433
Housing Affordability Index3 277


Total Households 1,142
Average Household Size 2.46
Family Households 702
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 0.21% 0.29%
Households 0.22% 0.31%
Families 0.3% 0.17%
Median Household Income   1.46%
Per Capita Income   1.85%
Owner Occupied HU   0.31%


Delphi, IN - Peer Comparisons by Rank and Percentile

The table below compares Delphi to the other 679 incorporated cities, towns and CDPs in Indiana 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 # 174 75th
Population Density # 412 39th
Median Household Income # 559 18th
Housing Affordability Index # 382 56th
Per Capita Income # 528 22nd
Diversity Index # 85 88th

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

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