Grafton, IA 50440 ZIP Code Profile

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Grafton, IA

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ZIP Code 50440: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Grafton, IA 50440

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 18
  • Single Family Addresses: 85
  • Multi-Family Addresses: 0
  • County: Worth County
  • Centroid: Latitude 43.329, Longitude -93.072
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

Neighborhood Data

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50440 ZIP Code Map

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Grafton, IA 50440 Data & Demographics (As of July 1, 2017)


Total Population 427
Daytime Population: Workers 79
Daytime Population: Residents 194
Total Daytime Population (TDP) 273
Ratio TDP/Total Population1 0.64
Population in Households 427
Population in Familes 356
Population in Group Qrtrs 0
Population Density2 14
Diversity Index3 4


Median Household Income $57,423
Average Household Income $74,017
Per Capita Income $32,415


Total Housing Units 214 (100%)
Owner Occupied HU 155 (72.4%)
Renter Occupied HU 32 (15.0%)
Vacant Housing Units 27 (12.6%)
Median Home Value $130,556
Average Home Value $196,290


Total Households 187
Average Household Size 2.28
Family Households 134
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 0.36% 0.19%
Households 0.3% 0.21%
Families 0.21% 0.15%
Median Household Income   2.38%
Per Capita Income   2.71%

Grafton, IA 50440 - Peer Comparisons by Rank and Percentile

The table below compares 50440 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 # 733 24th
Population Density # 688 29th
Diversity Index # 898 8th
Median Household Income # 328 66th
Per Capita Income # 169 83rd

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

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