Plymouth, IL Profile: Facts & Data


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Plymouth, Illinois - Basic Facts

The Village of Plymouth had a population of 467 as of July 1, 2018. Plymouth 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 Plymouth is located at latitude 40.2921 and longitude -90.9163 in Hancock County. The formal boundaries for the Village of Plymouth (see map below) encompass a land area of 0.56 sq. miles and a water area of 0 sq. miles. Hancock County is in the Central time zone (GMT -6). The elevation is 650 feet.

The Village of Plymouth (GNIS ID: 2398989) 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 Village of Plymouth is located within Township of Saint Mary, a minor civil division (MCD) of Hancock County.

Beneath the boundary map are tables with Plymouth population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2018.

Jump to... (On This Page!)
  1. Plymouth 2018 Demographic Data
  2. Growth Rates for Plymouth (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Illinois Research Tools (Easy Tools & Current Data)
  3. Illinois Data Comparison Tool - 2018 Demographics

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Plymouth, IL Data & Demographics (As of July 1, 2018)


Total Population 467
Population in Households 450
Population in Familes 360
Population in Group Qrtrs 17
Population Density2 832
Diversity Index3 6


Median Household Income $36,744
Average Household Income $49,037
Per Capita Income $19,306


Total Housing Units 231 (100%)
Owner Occupied HU 153 (66.2%)
Renter Occupied HU 40 (17.3%)
Vacant Housing Units 38 (16.5%)
Median Home Value $50,000
Average Home Value $97,078


Total Households 193
Average Household Size 2.33
Family Households 124
Average Family Size 3
  1. Demographics are point estimates for July 1st of the current year and each for the forecast years. See References for more information.
  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.


2010-2018 2018-2023
Population -0.94% -0.74%
Households -0.85% -0.63%
Families -0.57% -0.82%
Median Household Income   6.35%
Per Capita Income   4.22%

Plymouth, IL - Peer Comparisons by Rank and Percentile

The table below compares Plymouth to the other 1,368 incorporated cities, towns and CDPs in Illinois by rank and percentile using July 1, 2018 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 # 960 30th
Population Density # 863 37th
Diversity Index # 1211 12th
Median Household Income # 1297 5th
Per Capita Income # 1310 4th

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

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Illinois Census Data Comparison Tool

Compare Illinois July 1, 2018 Data
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