What is the population of St. Marys city?

St. Marys city has 8,319 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #214 of 1,265 in Ohio.

What is the median household income in St. Marys city?

Median household income in St. Marys city is $72,056 a year, 8.3% below the national figure of $78,538.

How much does it cost to rent or buy in St. Marys city?

Median gross rent is $835 a month and the median home value is $138,500, so rent absorbs about 13.9% of median household income.

Is St. Marys city affordable compared with the rest of the US?

Homes cost about 1.9× the local median income here versus roughly 3.9× nationally, so St. Marys city is more affordable to buy in than the typical US market, and rent takes 13.9% of median income against the 30% cost-burden line.

Aerial view of a dense city center, illustrating the US cities ZIP code directory

Ohio · Census place 69680

St. Marys, OH population, income and ZIP codes

Quick answer

The population of the city of St. Marys, Ohio (St. Marys, OH — Census place “St. Marys city”) is 8,319 residents, ranking #214 of 1265 places in Ohio. Median household income is $72,056, the median home is worth $138,500 and median gross rent runs $835 a month. Looking for the St. Marys Ohio ZIP code list? 1 ZIP codes serve St. Marys, OH: 45885.

Population: 8,319St. Marys city residents
Median household income: $72,056Past 12 months, inflation adjusted
Median home value: $138,500Owner-occupied units
Median gross rent: $835Rent plus utilities, monthly
Median age: 36.2 yrsAll residents
Homeownership rate: 73.6%Owner-occupied households

St. Marys ZIP codes (Ohio)

Census ZCTAs whose delivery area overlaps St. Marys.

The St. Marys OH ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.

45885

What the numbers mean in St. Marys city

Housing cost measured against local earnings.

A household earning the St. Marys city median would spend about 13.9% of gross income on the median rent. The 30% mark is the federal threshold for cost burden, so anything above it signals a stretched rental market. The median home costs 1.9× the median household income; nationally that ratio sits near 4.5×. Poverty affects 9.7% of residents and 73.6% of households own their home.

Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year

St. Marys city, OH in context

How this area compares with national benchmarks.

St. Marys city is a mid-size town in Ohio, with 8,319 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #214 of 1,265 ranked by population — larger than 83% of them. The median age here is 36.2 years against 39.1 nationally, a slightly younger profile than the country as a whole. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.

Households in St. Marys city earn a median of $72,056 a year, 8.3% below the national figure of $78,538 and 9% above the $66,250 median for the 689 Ohio cities we cover. This figure covers the household, not the worker: two people on ordinary wages at one address outrank a single professional in the same table. Poverty reaches 9.7% of residents here, below the 12.4% national rate.

The typical owner-occupied home in St. Marys city is valued at $138,500, 54.4% below the national figure and 18% below the $168,500 peer median, while median gross rent runs $835 a month, 40.6% below the national figure, or roughly $10,020 across a full year. A household on the local median income would put about 13.9% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is cheap relative to what people here earn. The home-price-to-income ratio works out to 1.9×, against roughly 3.9× nationally, so purchase prices are unusually low against local pay, the pattern in places where supply is plentiful and wage growth has been flat. 73.6% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. Rent is reported gross — contract rent plus tenant-paid utilities — which is why it runs above the advertised price on a listing for the same unit.

All values below were released by the Census for this exact geography, with no gap-filling on our side. Small-area estimates still carry wider margins of error than state or national figures, so check the linked ACS tables before relying on them for lending, appraisal or legal work.

Compare with nearby places

Places of similar size in Ohio.

More Ohio coverage.

Frequently asked questions

Common questions about this area.

What is the population of St. Marys city?: St. Marys city has 8,319 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #214 of 1,265 in Ohio.
What is the median household income in St. Marys city?: Median household income in St. Marys city is $72,056 a year, 8.3% below the national figure of $78,538.
How much does it cost to rent or buy in St. Marys city?: Median gross rent is $835 a month and the median home value is $138,500, so rent absorbs about 13.9% of median household income.
Is St. Marys city affordable compared with the rest of the US?: Homes cost about 1.9× the local median income here versus roughly 3.9× nationally, so St. Marys city is more affordable to buy in than the typical US market, and rent takes 13.9% of median income against the 30% cost-burden line.
How current is this St. Marys city data?: All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. Places under 65,000 residents only appear in the five-year release, never the one-year file, so these values pool sixty months of responses and lag the current year by design.