ZIP Code 50255 — Thornburg city, IA Demographics & Data

ZIP code 50255 covers Thornburg, IA in Keokuk County with a population of about 40.

At a glance, the area shows median age of 60.2 versus a U.S. median of about 38.9.

It sits in telephone area code 641; U.S. House district IA-1; the CEDAR RAPIDS - WTRLO - IWC&DUB media market.

Thornburg, IA fits a retirement-oriented profile (high share of residents 65+ (37.5%)). Residents and relocators commonly research healthcare access, everyday amenities (dining, personal services), and housing costs rather than tech or campus life.

Median household income in ZIP 50255 is about $39,643 — about 47% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 10.0%; unemployment rate near 25.0%; 24.3% of adults with a bachelor’s degree or higher (about 9.4 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Manufacturing, and Retail trade; a mean commute of about 15.0 minutes (U.S. average near 26.8).

Housing tenure and rents show owner-occupancy near 100.0% (about 34.6 points above the national owner-occupancy rate (65.4%)).

FEMA’s National Risk Index rates natural-hazard risk for Thornburg city, IA as Very Low (composite score 21.9), which is relatively lower than many U.S. communities. The strongest component scores on US5 are wildfire (44.4) and flood (29.6). 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 Thornburg city, IA show little to no average snow and around 37.4 inches of annual precipitation.

IRS migration statistics show a net inflow of about 2 for ZIP 50255 (Thornburg city, IA) 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.