Rock Island, TN 38581 ZIP Code Profile

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Rock Island, TN

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ZIP Code 38581: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Rock Island, TN 38581

Acceptable Alternative
Bone Cave, TN 38581

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 71
  • Single Family Addresses: 1,702
  • Multi-Family Addresses: 1
  • County: Warren County
  • Centroid: Latitude 35.731, Longitude -85.65
  • Time Zone: Central Time Zone (UTC -6 hours)
  • Observes DST: Yes

ZIP Code 38581 has segments in 3 Counties (DeKalb, Van Buren, Warren).

Neighborhood Data

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38581 ZIP Code Map

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Rock Island, TN 38581 Data & Demographics (As of July 1, 2015)


Total Population 3,317
Population in Households 3,306
Population in Familes 2,786
Population in Group Qrtrs 11
Population Density1 44
Diversity Index2 23


Total Households 1,304
Average Household Size 2.54
Family Households 943
Average Family Size 3


Total Housing Units 1,571 (100%)
Owner Occupied HU 1,042 (66.3%)
Renter Occupied HU 262 (16.7%)
Vacant Housing Units 267 (17.0%)
Median Home Value $96,517
Average Home Value $135,245


Median Household Income $36,567
Average Household Income $47,592
Per Capita Income $18,729
  (Compound Annual Growth Rates)


2010-2015 2015-2020
Population -0.2% 0.0%
Households -0.07% 0.02%
Families -0.24% -0.06%
Median Household Income   2.74%
Per Capita Income   2.74%
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.


Rock Island, TN 38581 - Peer Comparisons by Rank and Percentile

The table below compares 38581 to the other 608 ZIP Codes in Tennessee by rank and percentile using July 1, 2015 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 # 371 39th
Population Density1 # 426 30th
Diversity Index2 # 230 63rd
Median Household Income # 372 39th
Per Capita Income # 429 30th

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