Carthage, SD demographics:
population, income, and more

Total population
78
-25.0% year-over-year change
Median household income
$46,875/yr
-20.2% year-over-year change
Housing units
103
0.0% year-over-year change

Carthage population

How many people live in Carthage

Carthage is home to 78 residents, according to the most recent Census data. Gender-wise, 62.8% of Carthage locals are male, and 37.2% are female.

Total population
78
-25.0% year-over-year change
Gender ratio
Male
62.8%
49
Female
37.2%
29
Value Percent YoY change
Male 49 62.8% 2.1%
Female 29 37.2% -48.2%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Carthage is 53, with the population distributed as follows: about 6.4% are children under 15, then 5.1% are in the 15 to 24 age group. Adults between 25 and 44 make up 23.1% of the population, while another 30.8% fall into the 45 to 64 bracket. Finally, around 34.6% are 65 or older.

Median age
53.2
Age breakdown
Under 15
6.4%
15 to 24
5.1%
25 to 44
23.1%
45 to 64
30.8%
Over 65
34.6%
Value Percent YoY change
Under 15 5 6.4% -70.6%
15 to 24 4 5.1% 0.0%
25 to 44 18 23.1% 12.5%
45 to 64 24 30.8% -29.4%
Over 65 27 34.6% -18.2%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

Citizenship
U.S.-born citizens
100%
Non-U.S.-born citizens
0%
Non-citizens
0%
Value Percent YoY change
U.S.-born citizens 78 100% -25.0%
Racial breakdown
White
94.9%
Black or African American
0%
American Indian and Alaska Native
0%
Asian
5.1%
Native Hawaiian and other Pacific Islander
0%
Two or more races
0%
Other
0%
Value Percent
White 74 94.9%
Asian 4 5.1%

Households in Carthage

A peek inside Carthage households

Carthage has 55 households, with an average of 1 members in each. Of these, 30.9% are families, while the remaining 69.1% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
55
-12.7% year-over-year change
Average people per household
1
Non-family households
38
Family households
17
Value Percent YoY change
Non-family households 38 69.1% -7.3%
Family households 17 30.9% -22.7%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Carthage

The housing landscape of Carthage

Carthage's housing consists of 103 units, with 89.3% being detached single-family homes ideal for those wanting space. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 1% of the housing landscape.

Housing units
103
0.0% year-over-year change
Housing types
Value Percent
1 unit, detached 92 89.3%
3 or 4 units 10 9.7%
Mobile home 1 1%
Homes built since 2020
0
% year-over-year change

The age of buildings in Carthage

In Carthage, the median construction year is 1953. About 32% of homes were built before the 1940s, with another 11.6% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 33 32% -38.9%
Built between 1940 and 1949 12 11.6% 100.0%
Built between 1950 and 1959 24 23.3% 50.0%
Built between 1960 and 1969 14 13.6% -12.5%
Built between 1970 and 1979 7 6.8% -22.2%
Built between 1980 and 1989 11 10.7% N/A
Built between 1990 and 1999 2 1.9% 0.0%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Carthage occupancy rates

Out of the 55 occupied housing units in Carthage, 81.8% are owner-occupied, while 18.2% are lived in by tenants. Meanwhile, 46.6% of all homes on the local market sit vacant.

Occupied housing units
55
-12.7% year-over-year change
Occupancy breakdown
Renter occupied
10
Owner occupied
45
Value Percent YoY
change
Renter occupied 10 18.2% 150.0%
Owner occupied 45 81.8% -23.7%
Unoccupied housing units
46.6%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Carthage housing costs

Median housing costs per month
$566/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.

Education in Carthage

Carthage education at a glance

About 31.5% of the population in Carthage went to high school, while 15.1% pursued college studies. Another 24.7% earned an associate degree and 12.3% hold a bachelor’s. Meanwhile, 2.7% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 10 13.7% N/A
High school diploma 23 31.5% -46.5%
College diploma 11 15.1% -15.4%
Associate degree 18 24.7% -5.3%
Bachelor's degree 9 12.3% -10.0%
Graduate degree 2 2.7% 0.0%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Carthage

How much people earn in Carthage

The average annual household income in Carthage was $66,342 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +0% change from the previous year. At the same time, the median income stood at $46,875, reflecting a -20.2% shift over the same period.

Average household income in Carthage
$66,342/year
0.1% year-over-year change
Median household income in Carthage
$46,875/year
-20.2% year-over-year change

Carthage income by age

Overall, 91% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Over 65 $53,750 -7.2%
Above poverty level
71
Below poverty level
7
Value Percent YoY
change
Above poverty level 71 91% -18.4%
Below poverty level 7 9% -50.0%

Employment in Carthage

Workforce and job types in Carthage

The job market in Carthage is powered by 50 working residents, spread across a range of industries and roles. 38% of the working population are employed in professional or administrative positions, while 62% are in hands-on or service-based jobs. Also, 22% run their own businesses, 72% are employed by private companies, and 4% work in the public sector.

Workforce demographics

Working population
50
-3.9% year-over-year change
White collar
19
Blue collar
31
Value Percent YoY change
White collar 19 38% -29.6%
Blue collar 31 62% 24.0%
Employer type
Self employees
22%
Private companies
72%
Governmental workers
4%
Not for profit companies
2%
Value Percent YoY change
Self employees 11 22% -26.7%
Private companies 36 72% 12.5%
Governmental workers 2 4% 0.0%
Not for profit companies 1 2% -66.7%

Transportation in Carthage

How people get around in Carthage

Commuting methods vary: 84% of residents travel by personal vehicle and 4% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 42 84% 16.7%
Bicycle 2 4% N/A
Walk 2 4% 0.0%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Carthage by zipcode?

Zipcode Population Number of households Median income Average income
57323 126 82 $51,250 $68,030

Explore more communities

FAQs about Carthage demographics 

What is the total population of Carthage?

Carthage has a total population of 78 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by -25.0% compared to a year ago.

What is the gender ratio in Carthage?

The gender ratio in Carthage is as follows:
  • 62.8% males (49 residents)
  • 37.2% females (29 residents)

What is the median age in Carthage?

The median age in Carthage is 53.2.

What is the age distribution of the population in Carthage?

The age distribution in Carthage is as follows:
  • Under 15: 6.4% (5 residents)
  • Ages 15-24: 5.1% (4 residents)
  • Ages 25-44: 23.1% (18 residents)
  • Ages 45-64: 30.8% (24 residents)
  • Over 65: 34.6% (27 residents)

What is the racial and ethnic makeup of Carthage?

The racial and ethnic makeup of Carthage is as follows:
  • White: 94.9% (74 residents)
  • Black or African American: 0% (0 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 5.1% (4 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 0% (0 residents)
  • Other: 0% (0 residents)

What percentage of the population in Carthage are U.S.-born citizens?

U.S.-born citizens represent 100% of the population in Carthage.

How many housing units are there in Carthage?

There are 103 housing units in Carthage, reflecting a 0.0% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Carthage and what is the average household size?

Carthage has a total of 55 households, with an average of 1 people in each.

What is the median household income in Carthage?

Carthage has a median household income of $46,875, representing a -20.2% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Carthage?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 38% (19 residents)
  • Blue-collar workers: 62% (31 residents)

Places of employment:
  • Self-employed: 22% (11 residents)
  • Private companies: 72% (36 residents)
  • Governmental workers: 4% (2 residents)
  • Not-for-profit companies: 2% (1 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025