What is the population of St. John city?

St. John city has 6,562 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #119 of 1,082 in Missouri.

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

Median household income in St. John city is $50,429 a year, 35.8% below the national figure of $78,538.

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

Median gross rent is $1,153 a month and the median home value is $96,900, so rent absorbs about 27.4% of median household income.

Is St. John 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. John city is more affordable to buy in than the typical US market, and rent takes 27.4% of median income against the 30% cost-burden line.

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

Missouri · Census place 64478

St. John, MO population, income and ZIP codes

Quick answer

The population of the city of St. John, Missouri (St. John, MO — Census place “St. John city”) is 6,562 residents, ranking #119 of 1082 places in Missouri. Median household income is $50,429, the median home is worth $96,900 and median gross rent runs $1,153 a month. Looking for the St. John Missouri ZIP code list? 1 ZIP codes serve St. John, MO: 63114.

Population: 6,562St. John city residents
Median household income: $50,429Past 12 months, inflation adjusted
Median home value: $96,900Owner-occupied units
Median gross rent: $1,153Rent plus utilities, monthly
Median age: 38.7 yrsAll residents
Homeownership rate: 58.7%Owner-occupied households

St. John ZIP codes (Missouri)

Census ZCTAs whose delivery area overlaps St. John.

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

63114

What the numbers mean in St. John city

Housing cost measured against local earnings.

A household earning the St. John city median would spend about 27.4% 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 14% of residents and 58.7% 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. John city, MO in context

How this area compares with national benchmarks.

St. John city is a mid-size town in Missouri, with 6,562 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #119 of 1,082 ranked by population — larger than 89% of them. The median age here is 38.7 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. John city earn a median of $50,429 a year, 35.8% below the national figure of $78,538 and 9% below the $55,543 median for the 374 Missouri cities we cover. Household income here is measured before tax and pooled across everyone at the address, which is why it reads higher than typical individual earnings in the same area. Poverty reaches 14% of residents here, above the 12.4% national rate.

The typical owner-occupied home in St. John city is valued at $96,900, 68.1% below the national figure and 36% below the $152,400 peer median, while median gross rent runs $1,153 a month, 18% below the national figure, or roughly $13,836 across a full year. A household on the local median income would put about 27.4% of gross pay toward that rent against the federal 30% cost-burden threshold, so renting here is within the standard affordability guideline. 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. 58.7% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.

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

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Frequently asked questions

Common questions about this area.

What is the population of St. John city?: St. John city has 6,562 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #119 of 1,082 in Missouri.
What is the median household income in St. John city?: Median household income in St. John city is $50,429 a year, 35.8% below the national figure of $78,538.
How much does it cost to rent or buy in St. John city?: Median gross rent is $1,153 a month and the median home value is $96,900, so rent absorbs about 27.4% of median household income.
Is St. John 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. John city is more affordable to buy in than the typical US market, and rent takes 27.4% of median income against the 30% cost-burden line.
How current is this St. John 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.