This data series is taken from the graph ,"Year of Naturalization" with the more complete definition of: For naturalized citizens, what year did they become a citizen of the United States.
This page shows the top 25 Zipcodes in Iowa ranked by Percent Of People Naturalized Before 1990.
The Demographics data itself is based on the 2020 American Community Survey from the Census Bureau.
The top chart is a Histogram and shows the data depicted in a bar graph with the length of each bar in proportion to the frequency of the number of Zipcodes with a value for Naturalized before 1990 falling between the range shown on the horizontal axis.
The second diagram is a table which shows the Zipcodes sorted by Naturalized before 1990.
You can click on any column in the table to resort the table in ascending or descending order. Also, you can Click on any location name in the table to get the full web page profile.
Note: Zipcodes shown include only those with more than 2,499 population and at least 49 housing units.
Source: 2021 American Community Survey
Top 25 Iowa Zipcodes Ranked by Percent Of People Naturalized Before 1990
Cities marked with an asterisk ("*") should resemble a city or town but do not have their own government (i.e. Mayor, City Council, etc.) These places should be recognizable by the local community but their boundaries have no legal status. Technically these include both Census Designated Places (CDP) and Census County Divisions (CCD) which are defined by the Census Bureau along with local authorities. (For more information, see:
Census Designated Place or "CDP")
and Census County Division "CCD".)
For comparison purposes, the US national average and the state average value are provided. Additionally, the "Combined Statistical Area" or CSA is shown that is closest to the city, county, or zip code shown. A CSA is a large grouping of adjacent metropolitan areas that identified by the Census Bureau based on social and economic ties. (See: Combined Statistical Area)
Data sources - Mouse over icon in upper right corner of each chart for information.