PlainZIP

Agar, SD · standard

ZIP Code 57520

Sully County, South Dakota - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

153
0/sq mi
$50,417
Median income
$118,800
Median home value
34.0%
Bachelor's or higher

The verdict

Agar pairs one of the lowest household incomes in the country with among the most affordable home values nationally, in a rural, homeowner-dominated area.

15th pct
household income, US ZIPs
16th pct
home value, US ZIPs
0
people per sq mi
66%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 57520 against every reporting US ZIP.

ZIP code 57520 is a sparsely populated ZIP (a standard USPS delivery area) in Agar, Sully County, South Dakota, home to just 153 residents across 382.5 square miles, a density of 0 people per square mile, in the Chicago time zone.

ZIP 57520 reports a modest median household income of $50,417 (34% below the South Dakota average), while per-capita income is $41,566. The poverty rate stands at 14.4% and the unemployment rate at 0.0%. The typical home here is valued at $118,800 (38% below the state average); renters pay a median of - monthly, and 66.2% of units are owner-occupied.

A solid share of residents have a four-year degree: 34.0% of adults hold a bachelor's degree or higher, the median age is 54.8, and the average commute is -. Use the benchmarks above to see where 57520 sits relative to South Dakota and the national baseline rather than viewing the numbers in isolation.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 57520, Agar, SD · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

153

Population

382.5

Area (sq mi)

0

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 57520?

54.8

Median Age

55.9%

Male

44.1%

Female

7.6%

Foreign-Born

White 82.2%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 17.8%
Hispanic or Latino 0.0%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$50,417

Median Household Income

-34% vs state

$41,566

Per Capita Income

14.4%

Poverty Rate

0.0%

Unemployment Rate

How ZIP 57520 ranks nationally

Agar, SD household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$50,417 15th percentile higher than 15% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). This entry sits in this band. $60,000–$80,000: 9,980 US ZIPs (33%). Above this entry. $80,000–$100,000: 5,778 US ZIPs (19%). Above this entry. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 68.0%
Bachelor's Degree or Higher 34.0%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

139

Total Housing Units

77

Occupied Units

62

Vacant Units

1.53

Avg Household Size

Occupancy Type

Owner 66.2%
Renter 33.8%

$118,800

Median Home Value

-38% vs state

1972

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 6 business establishments in ZIP 57520, employing approximately 27 people with a combined annual payroll of $3,425,000.

6

Businesses

27

Employees

$3.4M

Annual Payroll

0

Industry Sectors

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

More ZIP Codes in Sully County

57564 standard
Onida, SD
Pop: 995

Related Areas

Sully County Agar, SD South Dakota

Frequently Asked Questions

What county is ZIP code 57520 in? ▼
ZIP code 57520 (Agar) is located in Sully County, South Dakota. Sully County contains multiple ZIP codes, see the full list at /counties/sully-sd.
What is the population of ZIP code 57520? ▼
ZIP code 57520 in Agar, SD has a population of 153 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 57520? ▼
The median household income in ZIP 57520 is $50,417, which is 34% below the national average of $76,288.
What is the average home value in ZIP 57520? ▼
The median home value in ZIP 57520 is $118,800, which is 57% below the national average of $278,155.
What is the demographic makeup of ZIP 57520? ▼
The largest racial group in ZIP 57520 is White at 82.2%.
How many businesses are in ZIP code 57520? ▼
ZIP code 57520 has 6 business establishments employing approximately 27 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 57520? ▼
In ZIP code 57520, 68.0% of residents aged 25+ have a high school diploma or higher, and 34.0% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 57520? ▼
In ZIP code 57520, approximately 66.2% of occupied housing units are owner-occupied and 33.8% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 57520? ▼
The poverty rate in ZIP code 57520 is 14.4% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.