What is the population of Seneca city?

Seneca city has 1,938 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #276 of 1,082 in Missouri.

What is the median household income in Seneca city?

Median household income in Seneca city is $49,821 a year, 36.6% below the national figure of $78,538.

How much does it cost to rent or buy in Seneca city?

Median gross rent is $886 a month and the median home value is $112,300, so rent absorbs about 21.3% of median household income.

Is Seneca city affordable compared with the rest of the US?

Homes cost about 2.3× the local median income here versus roughly 3.9× nationally, so Seneca city is more affordable to buy in than the typical US market, and rent takes 21.3% 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 66674

Seneca, MO population, income and ZIP codes

Quick answer

The population of the city of Seneca, Missouri (Seneca, MO — Census place “Seneca city”) is 1,938 residents, ranking #276 of 1082 places in Missouri. Median household income is $49,821, the median home is worth $112,300 and median gross rent runs $886 a month. Looking for the Seneca Missouri ZIP code list? 1 ZIP codes serve Seneca, MO: 64865.

Population: 1,938Seneca city residents
Median household income: $49,821Past 12 months, inflation adjusted
Median home value: $112,300Owner-occupied units
Median gross rent: $886Rent plus utilities, monthly
Median age: 35.7 yrsAll residents
Homeownership rate: 61.3%Owner-occupied households

Seneca ZIP codes (Missouri)

Census ZCTAs whose delivery area overlaps Seneca.

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

64865

What the numbers mean in Seneca city

Housing cost measured against local earnings.

A household earning the Seneca city median would spend about 21.3% 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 2.3× the median household income; nationally that ratio sits near 4.5×. Poverty affects 19.1% of residents and 61.3% of households own their home.

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

Seneca city, MO in context

How this area compares with national benchmarks.

Seneca city is a small town in Missouri, with 1,938 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #276 of 1,082 ranked by population — larger than 74% of them. The median age here is 35.7 years against 39.1 nationally, a slightly younger profile than the country as a whole. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.

Households in Seneca city earn a median of $49,821 a year, 36.6% below the national figure of $78,538 and 10% below the $55,543 median for the 374 Missouri cities we cover. The median is the midpoint household, not an average, so a handful of very high earners cannot drag it upward the way they distort a mean. Poverty reaches 19.1% of residents here, well above the 12.4% national rate, which is the single clearest signal in this dataset that median income here is carried by a narrow band of households.

The typical owner-occupied home in Seneca city is valued at $112,300, 63% below the national figure and 26% below the $152,400 peer median, while median gross rent runs $886 a month, 37% below the national figure, or roughly $10,632 across a full year. A household on the local median income would put about 21.3% 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 2.3×, 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. 61.3% of occupied homes are owner-occupied versus 65% nationally, so the market leans more heavily on renters. Gross rent folds in the utilities a tenant pays separately, so it is closer to the real monthly outlay than a headline rent figure.

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 Missouri.

More Missouri coverage.

Frequently asked questions

Common questions about this area.

What is the population of Seneca city?: Seneca city has 1,938 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #276 of 1,082 in Missouri.
What is the median household income in Seneca city?: Median household income in Seneca city is $49,821 a year, 36.6% below the national figure of $78,538.
How much does it cost to rent or buy in Seneca city?: Median gross rent is $886 a month and the median home value is $112,300, so rent absorbs about 21.3% of median household income.
Is Seneca city affordable compared with the rest of the US?: Homes cost about 2.3× the local median income here versus roughly 3.9× nationally, so Seneca city is more affordable to buy in than the typical US market, and rent takes 21.3% of median income against the 30% cost-burden line.
How current is this Seneca city data?: All figures come from the US Census Bureau American Community Survey 2019-2023 ACS 5-year five-year estimates. At this population the ACS sample is small, so the margin of error around every dollar figure below is wide — treat the numbers as a band, not a point, and expect them to move between annual releases without the place itself changing.