Illinois · Census place 11527
Carthage, IL population, income and ZIP codes
Quick answer
The population of the city of Carthage, Illinois (Carthage, IL — Census place “Carthage city”) is 2,508 residents, ranking #464 of 1462 places in Illinois. Median household income is $75,179, the median home is worth $115,600 and median gross rent runs $679 a month. Looking for the Carthage Illinois ZIP code list? 1 ZIP codes serve Carthage, IL: 62321.
- Population
- 2,508Carthage city residents
- Median household income
- $75,179Past 12 months, inflation adjusted
- Median home value
- $115,600Owner-occupied units
- Median gross rent
- $679Rent plus utilities, monthly
- Median age
- 46.1 yrsAll residents
- Homeownership rate
- 71.5%Owner-occupied households
Carthage ZIP codes (Illinois)
Census ZCTAs whose delivery area overlaps Carthage.
The Carthage IL ZIP code list below covers 1 ZIP code. Open any one for its population, income, housing and rent profile.
What the numbers mean in Carthage city
Housing cost measured against local earnings.
A household earning the Carthage city median would spend about 10.8% 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 1.5× the median household income; nationally that ratio sits near 4.5×. Poverty affects 6.2% of residents and 71.5% of households own their home.
Source: US Census Bureau, ACS 2019-2023 5-year estimates · rates as published for 2019-2023 ACS 5-year
Carthage city, IL in context
How this area compares with national benchmarks.
Carthage city is a small town in Illinois, with 2,508 residents counted in the Census American Community Survey 2019-2023 ACS 5-year estimates, which places it #464 of 1,462 ranked by population — larger than 68% of them. The median age here is 46.1 years against 39.1 nationally, a markedly older profile that usually tracks retirees staying put and younger households leaving for work. 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 Carthage city earn a median of $75,179 a year, 4.3% below the national figure of $78,538 and within a couple of points of the $74,244 median for the 698 Illinois 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 6.2% of residents here, less than half the 12.4% national rate.
The typical owner-occupied home in Carthage city is valued at $115,600, 61.9% below the national figure and 35% below the $179,100 peer median, while median gross rent runs $679 a month, 51.7% below the national figure, or roughly $8,148 across a full year. A household on the local median income would put about 10.8% 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 1.5×, 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. 71.5% of occupied homes are owner-occupied versus 65% nationally, so the market leans toward owners. The rent line includes utilities paid by the tenant, a definition worth remembering when comparing it against a landlord's quoted rate.
No figure on this page is estimated by us; each one comes straight from the published ACS tables for this area. 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 Illinois.
- Altamont city 2,500
- Seneca village 2,525
- Polo city 2,495
- Carrollton city 2,528
- Henry city 2,478
- Richmond village 2,530
- Oakwood Hills village 2,454
- Brighton village 2,536
Keep going
More Illinois coverage.
Frequently asked questions
Common questions about this area.
- What is the population of Carthage city?
- Carthage city has 2,508 residents on Census ACS 2019-2023 ACS 5-year estimates, ranking #464 of 1,462 in Illinois.
- What is the median household income in Carthage city?
- Median household income in Carthage city is $75,179 a year, 4.3% below the national figure of $78,538.
- How much does it cost to rent or buy in Carthage city?
- Median gross rent is $679 a month and the median home value is $115,600, so rent absorbs about 10.8% of median household income.
- Is Carthage city affordable compared with the rest of the US?
- Homes cost about 1.5× the local median income here versus roughly 3.9× nationally, so Carthage city is more affordable to buy in than the typical US market, and rent takes 10.8% of median income against the 30% cost-burden line.
- How current is this Carthage 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.