Walnut, IA 51577 ZIP Code Profile

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Walnut, IA

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ZIP Code 51577: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Walnut, IA 51577

  • ZIP Code Type: STANDARD
  • County: Pottawattamie County
  • Centroid: Latitude 41.478, Longitude -95.219
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

ZIP Code 51577 has segments in 3 Counties (Cass, Pottawattamie, Shelby).

  • Businesses Addresses: 47
  • PO Box Addresses: 245
  • Residential Addresses: 228
    • Multi-Family Addresses: 0
    • Single Family Addresses: 228

The ZIP Code maps and database are updated 4 times per year.
Database updated: February 1, 2018, Maps updated: February 1, 2018.

EXTREMELY LOCAL Demographic Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting demographic data.


51577 ZIP Code Map

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Walnut, IA 51577 Data & Demographics (As of July 1, 2017)


Total Population 1,188
Daytime Population: Workers 319
Daytime Population: Residents 601
Total Daytime Population (TDP) 920
Ratio TDP/Total Population1 0.77
Population in Households 1,188
Population in Familes 955
Population in Group Qrtrs 0
Population Density2 14
Diversity Index3 10


Median Household Income $56,890
Average Household Income $67,910
Per Capita Income $29,839


Total Housing Units 594 (100%)
Owner Occupied HU 378 (63.6%)
Renter Occupied HU 144 (24.2%)
Vacant Housing Units 72 (12.1%)
Median Home Value $109,333
Average Home Value $163,095


Total Households 522
Average Household Size 2.28
Family Households 339
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.12% 0.18%
Households 0.13% 0.19%
Families -0.08% 0.06%
Median Household Income   1.27%
Per Capita Income   2.29%

Walnut, IA 51577 - Peer Comparisons by Rank and Percentile

The table below compares 51577 to the other 963 ZIP Codes in Iowa by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 424 56th
Population Density # 687 29th
Diversity Index # 471 50th
Median Household Income # 349 64th
Per Capita Income # 319 67th

Additional comparisons and rankings can be made with a VERY EASY TO USE Iowa Census Data Comparison Tool.

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