Tonica, IL Profile: Facts & Data


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Tonica, Illinois - Basic Facts

The Village of Tonica had a population of 753 as of July 1, 2020. Tonica ranks in the lower 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 Tonica is located at latitude 41.2159 and longitude -89.0667 in LaSalle County. The formal boundaries for the Village of Tonica encompass a land area of 1.36 sq. miles and a water area of 0 sq. miles. LaSalle County is in the Central time zone (GMT -6). The elevation is 663 feet.

The Village of Tonica (GNIS ID: 2399993) 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 Tonica is located within Township of Eden, a minor civil division (MCD) of LaSalle County.

Alternate Unofficial Names for Tonica: Point Republic, Vermillion.


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


Total Population 753 (100%)
Population in Households 753 (100.0%)
Population in Families 620 (82.3%)
Population in Group Quarters1 0
Population Density 552
Diversity Index2 15


Median Household Income $53,901
Average Household Income $69,410
% of Income for Mortgage4 11%
Per Capita Income $28,425
Wealth Index5 64


Total HU (Housing Units) 336 (100%)
Owner Occupied HU 229 (68.2%)
Renter Occupied HU 84 (25.0%)
Vacant Housing Units 23 ( 6.8%)
Median Home Value $135,417
Average Home Value $151,528
Housing Affordability Index3 192


Total Households 313
Average Household Size 2.41
Family Households 210
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 -0.19% -0.59%
Households -0.15% -0.52%
Families -0.05% -0.68%
Median Household Income   1.25%
Per Capita Income   2.14%
Owner Occupied HU   -0.53%


Tonica, IL - Peer Comparisons by Rank and Percentile

The table below compares Tonica 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 # 785 43rd
Population Density # 1045 24th
Median Household Income # 811 41st
Housing Affordability Index # 424 31st
Per Capita Income # 756 45th
Diversity Index # 656 52nd

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

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