ZIP Code 77021 — Houston city, TX Demographics & Data

ZIP code 77021 covers Houston, TX in Harris County with a population of about 24,884.

At a glance, the area shows median age of 36.8 versus a U.S. median of about 38.9.

It sits in telephone area codes 281, 346, 713, 832; U.S. House district TX-18; the HOUSTON media market.

Houston, TX sits in a university / college context (near texas southern university (1.6 mi)). Expect stronger interest in student housing, rentals, walkability, transit, and a younger adult age mix versus typical suburban ZIPs.

Median household income in ZIP 77021 is about $45,034 — about 40% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 28.7%; unemployment rate near 9.3%; 33.9% of adults with a bachelor’s degree or higher (roughly in line with the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Education, and Retail trade; about 15.7% of workers reporting work-from-home (roughly in line with the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Median home value is about $203,900 — about 41% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $957 (about 18% below the U.S. median rent ($1,163)), and owner-occupancy near 39.8% (about 25.6 points below the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 77021 in Houston, TX, a household would need roughly $56,000 in annual income under a 20% down, 30-year loan at 6.8% (illustrative), keeping housing costs near 28% of income. Estimated monthly PITI is about $1,310. That is about 24% above the local median household income ($45,034), so the median earner would likely stretch or need a larger down payment. Rates, taxes, insurance, and HOA fees vary — treat this as a planning estimate, not a lender quote.

FEMA’s National Risk Index rates natural-hazard risk for Houston city, TX as Very High (composite score 99.9), which is among the highest nationally. The strongest component scores on US5 are hurricane (100.0) and flood (100.0). 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 Houston city, TX show little to no average snow and around 54.1 inches of annual precipitation.

IRS migration statistics show a net inflow of about 1,174 for ZIP 77021 (Houston city, TX) 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.