Chattanooga, TN 37421 ZIP Code Profile

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Chattanooga, TN

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ZIP Code 37421: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Chattanooga, TN 37421

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 2,437
  • Single Family Addresses: 15,986
  • Multi-Family Addresses: 5,350
  • County: Hamilton County
  • Centroid: Latitude 35.025, Longitude -85.145
  • Time Zone: Eastern Time Zone (UTC -5 hours)
  • Observes DST: Yes

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


37421 ZIP Code Map

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Chattanooga, TN 37421 Data & Demographics (As of July 1, 2016)


Total Population 50,003
Population in Households 48,249
Population in Familes 37,763
Population in Group Qrtrs 1,754
Population Density1 1,519
Diversity Index2 51


Total Households 20,685
Average Household Size 2.33
Family Households 12,725
Average Family Size 3


Total Housing Units 22,171 (100%)
Owner Occupied HU 12,187 (55.0%)
Renter Occupied HU 8,498 (38.3%)
Vacant Housing Units 1,486 ( 6.7%)
Median Home Value $192,647
Average Home Value $229,554


Median Household Income $57,392
Average Household Income $77,339
Per Capita Income $33,066
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population 1.07% 1.0%
Households 0.92% 0.91%
Families 0.73% 0.79%
Median Household Income   2.31%
Per Capita Income   1.64%
1) Population Density = Total Population per square mile.
2) The Diversity Index is a scale of 0 to 100 that represents the likelyhood 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.
Based on Census 2010 counts, the Diversity Index for the United States was 60.6 and it is expected to increase to 64.8 by July 1, 2018.

Chattanooga, TN 37421 - Peer Comparisons by Rank and Percentile

The table below compares 37421 to the other 615 ZIP Codes in Tennessee by rank and percentile using July 1, 2016 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 # 16 98th
Population Density1 # 62 90th
Diversity Index2 # 69 89th
Median Household Income # 69 89th
Per Capita Income # 40 94th

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

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