Also See: Duncan, IA ZIP Codes & ZIP Code Maps
The Duncan CDP(1) had a population of 131 as of July 1, 2021. Duncan ranks in the lower quartile for Population Density when compared to the other cities, towns and Census Designated Places (CDPs) in Iowa. See peer rankings below.
The primary coordinate point for Duncan is located at latitude 43.1047 and longitude -93.7113 in Hancock County. The formal boundaries for the Duncan Census Designated Place encompass a land area of 0.79 sq. miles and a water area of 0.01 sq. miles. Hancock County is in the Central time zone (GMT -6). The elevation is 1,240 feet.
The Duncan Census Designated Place has a U1 Census Class Code which indicates a census designated place with an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.
Alternate Unofficial Names for Duncan: Hancock.
|Total Population||131 (100%)|
|Population in Households||128 (97.7%)|
|Population in Families||104 (79.4%)|
|Population in Group Quarters1||3 ( 2.3%)|
|Median Household Income||$75,000|
|Average Household Income||$93,191|
|% of Income for Mortgage4||0%|
|Per Capita Income||$36,979|
|Total HU (Housing Units)||37 (100%)|
|Owner Occupied HU||28 (75.7%)|
|Renter Occupied HU||6 (16.2%)|
|Vacant Housing Units||3 ( 8.1%)|
|Median Home Value||$195,000|
|Average Home Value||$196,296|
|Housing Affordability Index3||0|
|Average Household Size||3.76|
|Average Family Size||5|
GROWTH RATE / YEAR
|Median Household Income||0.81%|
|Per Capita Income||1.76%|
|Owner Occupied HU||-0.72%|
The table below compares Duncan to the other 1,008 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2021 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.
|Total Population||# 813||19th|
|Population Density||# 906||10th|
|Median Household Income||# 182||81st|
|Housing Affordability Index||# 63||6th|
|Per Capita Income||# 191||81st|
|Diversity Index||# 269||74th|
Additional comparisons and rankings can be made with a VERY EASY TO USE Iowa Census Data Comparison Tool.