ZIP 37821

What ZIP 37821 actually tells you, and what it doesn't

The 37821 ZIP Code Tabulation Area has a population of 21,751 and a median household income of $42,622. Against the other tabulation areas in this dataset, it places as follows.

The median home is priced at about 2.9 times median household income, above the midpoint for reporting areas. A gap of this size usually means demand is being set by buyers whose income is not counted in this ZCTA -- commuters, second-home buyers, or investors.

Median rent works out to about 21% of median household income, above the midpoint for reporting areas though still short of the 30% cost-burden line. Note that this compares two medians, not the same households: renters here typically earn less than the ZCTA-wide median, so their real share is higher.

The median age of 43.8 sits above the midpoint of reporting areas, the pattern of a settled population where more residents are past child-rearing than entering it.

ZCTAs approximate USPS ZIP codes rather than matching them, and these are 5-year ACS estimates, so they trail current conditions.