ZIP Code 37315 — Collegedale city, TN Demographics & Data

ZIP code 37315 covers Collegedale, TN in Hamilton County with a population of about 1,740.

At a glance, the area shows median age of 19.9 versus a U.S. median of about 38.9.

It sits in telephone area code 423; U.S. House district TN-3; the CHATTANOOGA media market.

Collegedale, TN sits in a university / college context (near southern adventist university (0.0 mi)). Expect stronger interest in student housing, rentals, walkability, transit, and a younger adult age mix versus typical suburban ZIPs.

On socioeconomic markers, US5 shows a unemployment rate near 2.8%; 46.0% of adults with a bachelor’s degree or higher (about 12.3 points above the national share (33.7%)).

Labor and commute patterns include leading industry context around Education, Food services, and Retail trade; about 12.5% of workers reporting work-from-home (about 2.7 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

FEMA’s National Risk Index rates natural-hazard risk for Collegedale city, TN as Relatively Moderate (composite score 93.3), which is among the highest nationally. The strongest component scores on US5 are flood (94.9) and wildfire (70.6). These scores are county-linked NRI values published for planning context — all ZIP codes in the same county share the same composite score on US5. Useful when comparing insurance and disaster exposure across areas, not a substitute for a parcel-level flood or fire determination.

Climate normals for Collegedale city, TN show little to no average snow and around 55.0 inches of annual precipitation.

IRS migration statistics show a net inflow of about 62 for ZIP 37315 (Collegedale city, TN) on US5’s published series — a signal of people/tax filers moving in relative to those leaving. Inflows often track job growth, housing demand, or lifestyle migration; treat the figure as a directional indicator rather than a precise headcount.