ZIP Code 61831 — undefined, IL Demographics & Data

ZIP code 61831 covers IL in Vermilion County with a population of about 164.

At a glance, the area shows median age of 65.5 versus a U.S. median of about 38.9.

It sits in telephone area codes 217, 447; U.S. House district IL-2; the CHAMPAIGN & SPRNGFLD - DECATUR media market.

IL reads as a military / base-oriented community on US5’s intent model (elevated veteran share (22.1%) and/or base-related place names). Service members and families often look up Basic Allowance for Housing (BAH) rates, on-base mail (PSC / P.O. Box) addresses, and nearby ZIP demographics when relocating.

US5 shows 2026 DoD BAH locality rates for this ZIP’s Military Housing Area on this page (pay grade × with/without dependents). Treat the table as a planning reference and confirm entitlement with your finance office or the official DTMO BAH lookup.

Median household income in ZIP 61831 is about $86,250 — about 15% above the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 7.3%; unemployment rate near 0.0%; 13.4% of adults with a bachelor’s degree or higher (about 20.3 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Agriculture, Manufacturing, and Construction; a mean commute of about 60.0 minutes (U.S. average near 26.8).

Median home value is about $171,900 — about 51% below the U.S. median home value ($348,079).

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

To comfortably buy a median-priced home in ZIP 61831 in IL, a household would need roughly $47,000 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 $1,104. That sits below the local median household income ($86,250), suggesting the typical household income is closer to a workable buy-in level under these assumptions. 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 IL as Relatively Low (composite score 78.8), which is elevated versus much of the country. The strongest component scores on US5 are flood (76.5) and hurricane (46.2). 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 IL show little to no average snow and around 43.2 inches of annual precipitation.

IRS migration statistics show a net inflow of about 9 for ZIP 61831 (IL) 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.