Rock Island, TN 38581 ZIP Code Profile

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Rock Island, TN

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Preferred City Name & Primary Data

Preferred Name, USPS
Rock Island, TN 38581

Acceptable Alternative
Bone Cave, TN 38581

Primary Data:

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 71
  • Single Family Addresses: 1,715
  • 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).

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

The table below compares 38581 to the other 605 ZIP Codes in Tennessee by rank and percentile using July 1, 2014 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 # 332 45th
Population Density1 # 430 29th
Diversity Index2 # 243 60th
Median Household Income # 354 42nd
Per Capita Income # 384 37th

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


Rock Island, TN 38581 Data & Demographics (As of July 1, 2014)


Total Population 4,046
Population in Households 4,028
Population in Familes 3,398
Population in Group Qrtrs 18
Population Density1 43
Diversity Index2 21


Total Households 1,617
Average Household Size 2.49
Family Households 1,172
Average Family Size 3


Total Housing Units 1,949 (100%)
Owner Occupied HU 1,312 (67.3%)
Renter Occupied HU 305 (15.6%)
Vacant Housing Units 332 (17.0%)
Median Home Value $92,566
Average Home Value $131,021


Median Household Income $36,202
Average Household Income $47,217
Per Capita Income $18,895
  (Compound Annual Growth Rates)


2010-2014 2014-2019
Population -0.09% 0.15%
Households 0.07% 0.17%
Families -0.12% 0.02%
Median Household Income   1.89%
Per Capita Income   2.17%
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.

Information Updates

The Demographic Data for the 1,972 Tennessee cities, towns, counties, ZIP Codes and Census Designated Places (CDPs) profiled in this gazetteer is updated annually. Last Update: July 1, 2014.

The ZIP Code maps and the data regarding the number of residential and business addresses in each ZIP Code are updated four times per year. Last Update: November 1, 2014.

The information on the 77,369 Tennessee Physical, Cultural and Historic Features is updated six times per year. Last Update: December 2, 2014.

The School Attendance Zone Maps for 1,103 Tennessee public schools are updated four times per year. Last Update: October 6, 2014.