Saint Marys, OH Profile: Facts, Map & Data


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Saint Marys, Ohio - Basic Facts

The City of Saint Marys had a population of 8,238 as of July 1, 2016.

The primary coordinate point for Saint Marys is located at latitude 40.5476 and longitude -84.393 in Auglaize County. The formal boundaries for the City of Saint Marys (see map below) encompass a land area of 4.64 sq. miles and a water area of 0.03 sq. miles. Auglaize County is in the Eastern time zone (GMT -5). The elevation is 869 feet.

The City of Saint Marys (GNIS ID: 2396505) 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 Saint Marys is located within Township of Saint Marys, a minor civil division (MCD) of Auglaize County.

Beneath the boundary map are tables with Saint Marys population, income and housing data, five-year growth projections and peer comparisons for key demographic data. The estimates are for July 1, 2016.

Alternate Unofficial Names for Saint Marys: Fort Barbee, Fort Saint Marys, Girtys Town, Girtystown, Kettle Town.

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


City of Saint Marys, OH Boundary Map

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Boundary Maps: Township of Saint Marys | Auglaize County | Ohio Counties

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Saint Marys, OH Data & Demographics (As of July 1, 2016)


Total Population 8,238
Population in Households 8,152
Population in Familes 6,629
Population in Group Qrtrs 86
Population Density1 1,774
Diversity Index2 12


Total Households 3,271
Average Household Size 2.49
Family Households 2,150
Average Family Size 3


Total Housing Units 3,650 (100%)
Owner Occupied HU 2,175 (59.6%)
Renter Occupied HU 1,096 (30.0%)
Vacant Housing Units 379 (10.4%)
Median Home Value $102,129
Average Home Value $127,138


Median Household Income $45,106
Average Household Income $54,658
Per Capita Income $21,975
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.18% -0.18%
Households -0.06% -0.09%
Families -0.32% -0.24%
Median Household Income   2.48%
Per Capita Income   1.93%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Saint Marys, OH - Peer Comparisons by Rank and Percentile

The table below compares Saint Marys to the other 1,215 incorporated cities, towns and CDPs in Ohio by rank and percentile using July 1, 2016 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 # 210 83rd
Population Density1 # 352 71st
Diversity Index2 # 561 54th
Median Household Income # 742 39th
Per Capita Income # 754 38th

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

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