What county is ZIP code 57520 in?

ZIP code 57520 is primarily in Sully County, South Dakota.

What is the population of ZIP code 57520?

The population of ZIP code 57520 is approximately 145 (as of 2022).

What time zone is ZIP code 57520 in?

ZIP code 57520 is in the Central Daylight Time (CDT) time zone (IANA: America/Chicago).

What is the area code for ZIP code 57520?

ZIP code 57520 uses the following area code(s): 605.

What is the median household income in ZIP code 57520?

The median household income in ZIP code 57520 is $48,889 (as of 2021).

ZIP Code 57520 - Agar South Dakota

Q: What city is ZIP code 57520 in?

ZIP code 57520 is located in Agar, South Dakota.

Overview

ZIP Code 57520 is located in Agar South Dakota. Portions of 57520 are also in West Sully and East Sully and Agar (town). 57520 is entirely within Sully County. Regionally, 57520 is located in the Sioux Falls Area.

ZIP Code 57520 Quick Stats

ZIP Code Name	Agar
Primary County	Sully County
ZIP Code Type	Standard
Population (2022)	145
Area Code(s)	605
Current Time	CDT

ZIP Code 57520 Map

Map of ZIP Code 57520 in Agar, SD — click to open interactive map

57520 Demographics

57520 can be classified socioeconomically as Lower Middle Class class compared to other ZIP Codes in South Dakota. The majority race/ethnicity residing in 57520 is White. The current unemployment level in 57520 is 2.2%.

Population	145
Population Growth Rate	-13.66%
Population Density	1 People per Square Mile
Total Households	65
Median Household Income (2021)	$48,889
Current Unemployment Rate (May 2026)	2.2%
Sales Tax Rate (2025)	4.2%
Majority Race/Ethnicity	White - 100%

57520 Race/Ethnicity Breakdown

Race/Ethnicity	Total	Percentage
White	139	100%
Black	0	0%
Hispanic	0	0%
Asian	0	0%
Native American	0	0%
Hawaiian/Pac. Islander	0	0%

57520 Educational Attainment Levels

Highest Education Level	Total	Percentage
Less Than 1 Year of College	3	3.49%
Bachelor Degree	19	22.09%
High School Diploma	37	43.02%
No High School Diploma	0	0%
GED or Alternate	12	13.95%
1 or More Years of College	8	9.3%
Associates Degree	7	8.14%
Masters Degree	0	0%
Professional Degree	0	0%
Doctorate Degree	0	0%

57520 Geography

Coordinates	44.84905243, -100.16235352
Adjacent ZIP Codes	57442 57501 57564
Cities/Towns in 57520	West Sully East Sully Agar (town)
Region	Sioux Falls Area
Time Zone	Central Daylight Time
IANA Timezone	America/Chicago
Area	126 Square Miles