Ithaca, MI Profile: Facts & Data

The primary coordinate point for Ithaca is located at latitude 43.2917 and longitude -84.6075 in Gratiot County. The formal boundaries for the City of Ithaca encompass a land area of 5.23 sq. miles and a water area of 0.05 sq. miles. Gratiot County is in the Eastern time zone (GMT -5).

The City of Ithaca 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.

Ithaca, MI Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	2,747 (100%)
Population in Households	2,694 (98.1%)
Population in Families	1,942 (70.7%)
Population in Group Quarters¹	53 ( 1.9%)
Population Density	480
Diversity Index²	27


INCOME
Median Household Income	$58,806
Average Household Income	$72,309
% of Income for Mortgage⁴	16%
Per Capita Income	$31,438
Wealth Index⁵	58
Socioeconomic Status Index⁶	Moderate (51.0)

HOUSING
Total HU (Housing Units)	1,302 (100%)
Owner Occupied HU	871 (66.9%)
Renter Occupied HU	322 (24.7%)
Vacant Housing Units	109 ( 8.4%)
Median Home Value	$149,816
Average Home Value	$162,354
Housing Affordability Index³	137

HOUSEHOLDS
Total Households	1,193
Average Household Size	2.26
Family Households	688
Average Family Size	3.00

NOTES

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.
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.
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.
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).
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.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

Ithaca, MI - Peer Comparisons by Rank and Percentile

The table below compares Ithaca to the other 745 incorporated cities, towns and CDPs in Michigan by rank and percentile using July 1, 2025 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.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	-0.72%	-0.40%
Households	-0.22%	-0.19%
Families		-0.20%
Median Household Income		1.11%
Per Capita Income		1.59%
Owner Occupied HU		0.09%

Variable Description	Rank	Percentile
Total Population	# 254	66th
Population Density	# 532	29th
Median Household Income	# 504	32nd
Housing Affordability Index	# 589	79th
Per Capita Income	# 505	32nd
Diversity Index	# 277	63rd

Ithaca, MI Profile: Facts & Data

Ithaca, Michigan - Basic Facts

Ithaca, MI Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Ithaca, MI - Peer Comparisons by Rank and Percentile

Ithaca, MI - Most Popular Things to Do

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Gratiot County