Wilmington, OH Profile: Facts, Map & Data


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Wilmington, Ohio - Basic Facts

The City of Wilmington had a population of 12,859 as of July 1, 2017. Wilmington ranks in the upper quartile for Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Ohio. See peer rankings below.

The primary coordinate point for Wilmington is located at latitude 39.4395 and longitude -83.8179 in Clinton County. The formal boundaries for the City of Wilmington (see map below) encompass a land area of 10.89 sq. miles and a water area of 0.04 sq. miles. Clinton County is in the Eastern time zone (GMT -5). The elevation is 1,017 feet.

The City of Wilmington (GNIS ID: 2397327) has a C5 Census Class Code which indicates an active incorporated place that is independent of any county subdivision and serves as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

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

Alternate Unofficial Names for Wilmington: Armenia, Clinton, Mount Pleasant, Robertsons Mills.

Neighborhood Data

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City of Wilmington, OH Boundary Map

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Wilmington, OH Data & Demographics (As of July 1, 2017)


Total Population 12,859
Daytime Population: Workers 11,458
Daytime Population: Residents 7,502
Total Daytime Population (TDP) 18,960
Ratio TDP/Total Population1 1.47
Population in Households 11,937
Population in Familes 9,093
Population in Group Qrtrs 922
Population Density2 1,181
Diversity Index3 29


Median Household Income $41,014
Average Household Income $55,757
Per Capita Income $22,952


Total Housing Units 5,925 (100%)
Owner Occupied HU 2,563 (43.3%)
Renter Occupied HU 2,649 (44.7%)
Vacant Housing Units 714 (12.1%)
Median Home Value $124,970
Average Home Value $146,390


Total Households 5,211
Average Household Size 2.29
Family Households 3,130
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 0.37% 0.3%
Households 0.37% 0.33%
Families 0.61% 0.16%
Median Household Income   2.29%
Per Capita Income   2.93%

Wilmington, OH - Peer Comparisons by Rank and Percentile

The table below compares Wilmington to the other 1,215 incorporated cities, towns and CDPs in Ohio 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 # 145 88th
Population Density # 638 48th
Diversity Index # 180 85th
Median Household Income # 977 20th
Per Capita Income # 782 36th

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

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