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ZIP Code Database - Facts & Stats

Data Last Updated: March 1, 2023

Zip Code 57278, Willow Lake, SD

ZIP Code 57278 Details

Zip Code:57278
City:Willow Lake
State:SD [South Dakota]
Counties:CLARK, SD
Multi County:No
City Alias(es):Willow Lake
Area Code:605
City Type:P [Post Office]
Classification: [Non-Unique]
Time Zone:Central (GMT -06:00)
Observes Daylight Saving:Yes
Elevation:1769 ft
State FIPS:46
County FIPS:025
Division:West North Central
Intro Date:<2004-10

ZIP Code 57278 2010 Census Demographics

Current Population:524
2010 Population:748
Households per ZIP Code:257
Average House Value:$159,300
Avg. Income Per Household:$58,375
Persons Per Household:2.34
White Population:728
Black Population:2
Hispanic Population:21
Asian Population:1
American Indian Population:2
Hawaiian Population:0
Other Population:21
Male Population:381
Female Population:367
Median Age:41.50 years
Male Median Age:38.50 years
Female Median Age:44.50 years

ZIP Code 57278 Other Demographics

# Residential Mailboxes:224
# Business Mailboxes:13
Total Delivery Receptacles:309
Number of Businesses:27
1st Quarter Payroll:$1,054,000
Annual Payroll:$4,600,000
# of Employees:128
Water Area:1.246 sq mi
Land Area:157.591 sq mi
118th Congressional District:
118th Congressional Land Area: sq mi
Single Family Delivery Units:224
Multi Family Delivery Units:0
# Residential Mailboxes:224
# Business Mailboxes:13
Total Delivery Receptacles:309

ZIP Code 57278 Social Security Benefits

  2018 2019 Delta
Total Beneficiaries: 115 120 +5
Retired Workers: 95 100 +5
Disabled Workers: 5 5 0
Widow(er)s and Parents: 15 10 -5
Spouses: 0 5 +5
Children: 0 0 0
65+: 105 110 +5
Monthly Benefits - All: $135,000 $147,000 +$12,000
Monthly Benefits - Retired Workers: $115,000 $126,000 +$11,000
Monthly Benefits - Widow(ers): $14,000 $12,000 ($2,000)

ZIP Code 57278 Statistical Areas

CBSA Name: 
CBSA Type: 
CBSA Division: 
CBSA Division Name: 
CBSA Population:0
CBSA Division Population:0
MSA Name: 
PMSA Name: 
City State Key:W1B275
Preferred Last Line Key:W1B275
57276: Previous ZIP Code
Next ZIP Code: 57279


  1. U.S. Postal Service [Last Updated: 3/1/2023],
  2. Internal Data Creation [Last Updated: 3/1/2023],
  3. U.S. Geological Survey [Updated as needed],
  4. U.S. Census [Updated Yearly],
  5. U.S. Census American National Standards Institute (ANSI) [Last Updated: 3/1/2023],
  6. U.S. Census 2010 [Decennial] [Last Updated: 1/1/2010],
  7. Centers for Medicare & Medicaid Services [Updated Yearly],