Smithland, IA 51056 ZIP Code Profile

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Smithland, IA

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ZIP Code 51056: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Smithland, IA 51056

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 11
  • Single Family Addresses: 159
  • Multi-Family Addresses: 0
  • County: Woodbury County
  • Centroid: Latitude 42.225, Longitude -95.934
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

ZIP Code 51056 has segments in 2 Counties (Monona, Woodbury).

Neighborhood Data

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Smithland, IA 51056 Data & Demographics (As of July 1, 2017)


Total Population 523
Daytime Population: Workers 37
Daytime Population: Residents 245
Total Daytime Population (TDP) 282
Ratio TDP/Total Population1 0.54
Population in Households 522
Population in Familes 423
Population in Group Qrtrs 1
Population Density2 14
Diversity Index3 15


Median Household Income $42,301
Average Household Income $53,915
Per Capita Income $22,579


Total Housing Units 232 (100%)
Owner Occupied HU 167 (72.0%)
Renter Occupied HU 52 (22.4%)
Vacant Housing Units 13 ( 5.6%)
Median Home Value $107,639
Average Home Value $156,587


Total Households 219
Average Household Size 2.38
Family Households 148
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 0.71% 0.45%
Households 0.58% 0.45%
Families 0.48% 0.4%
Median Household Income   3.9%
Per Capita Income   2.88%

Smithland, IA 51056 - Peer Comparisons by Rank and Percentile

The table below compares 51056 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 # 684 29th
Population Density # 678 30th
Diversity Index # 252 74th
Median Household Income # 911 6th
Per Capita Income # 902 6th

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

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