Keswick, IA 50136 ZIP Code Profile

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Keswick, IA

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ZIP Code 50136: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Keswick, IA 50136

  • ZIP Code Type: STANDARD
  • County: Keokuk County
  • Centroid: Latitude 41.47, Longitude -92.244
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

ZIP Code 50136 has segments in 2 Counties (Iowa, Keokuk).

  • Businesses Addresses: 16
  • PO Box Addresses: 25
  • Residential Addresses: 173
    • Multi-Family Addresses: 0
    • Single Family Addresses: 173

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

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50136 ZIP Code Map

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Keswick, IA 50136 Data & Demographics (As of July 1, 2017)


Total Population 450
Daytime Population: Workers 83
Daytime Population: Residents 235
Total Daytime Population (TDP) 318
Ratio TDP/Total Population1 0.71
Population in Households 450
Population in Familes 378
Population in Group Qrtrs 0
Population Density2 12
Diversity Index3 7


Median Household Income $59,172
Average Household Income $70,417
Per Capita Income $30,671


Total Housing Units 218 (100%)
Owner Occupied HU 163 (74.8%)
Renter Occupied HU 33 (15.1%)
Vacant Housing Units 22 (10.1%)
Median Home Value $95,259
Average Home Value $131,288


Total Households 196
Average Household Size 2.3
Family Households 138
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 0.37% -0.04%
Households 0.28% -0.1%
Families 0.1% -0.15%
Median Household Income   3.38%
Per Capita Income   2.88%

Keswick, IA 50136 - Peer Comparisons by Rank and Percentile

The table below compares 50136 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 # 721 25th
Population Density # 764 21st
Diversity Index # 762 21st
Median Household Income # 257 73rd
Per Capita Income # 261 73rd

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

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