The City of Johnston had a population of 23,065 as of July 1, 2019. Johnston ranks in the upper quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Iowa. See peer rankings below.
The primary coordinate point for Johnston is located at latitude 41.673 and longitude -93.6977 in Polk County. The formal boundaries for the City of Johnston encompass a land area of 17.14 sq. miles and a water area of 1.21 sq. miles. Polk County is in the Central time zone (GMT -6). The elevation is 830 feet.
The City of Johnston (GNIS ID: 2395474) has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.
Alternate Unofficial Names for Johnston: Johnston Station.
HOUSING AFFORDABILITY INDEX
|Johnston, IA Housing Affordability Index is 165
State of Iowa Housing Affordability Index is 164
|The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.|
|Johnston, IA Wealth Index is 164
State of Iowa Wealth Index is 86
|The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.|
These new demographic attributes are availiable for cities, Counties, ZIP Codes and even neighborhoods (Census Blocks) when you search by a specific Iowa address.
|Population in Households||22,826|
|Population in Familes||19,474|
|Population in Group Qrtrs||239|
|Median Household Income||$102,111|
|Average Household Income||$128,922|
|Per Capita Income||$47,790|
|Total Housing Units||8,701 (100%)|
|Owner Occupied HU||6,492 (74.6%)|
|Renter Occupied HU||1,949 (22.4%)|
|Vacant Housing Units||260 ( 3.0%)|
|Median Home Value||$273,678|
|Housing Affordability Index2||165|
|Average Household Size||2.7|
|Average Family Size||3|
GROWTH RATE / YEAR
|Median Household Income||1.73%|
|Per Capita Income||2.03%|
The table below compares Johnston to the other 1,008 incorporated cities, towns and CDPs in Iowa by rank and percentile using July 1, 2019 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||# 23||98th|
|Population Density||# 134||87th|
|Diversity Index||# 95||91st|
|Median Household Income||# 14||99th|
|Per Capita Income||# 18||98th|
Additional comparisons and rankings can be made with a VERY EASY TO USE Iowa Census Data Comparison Tool.