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Jefferson city, IA

ZIP Code 50129 — Jefferson city, IA Demographics & Data

Source: U.S. Census Bureau ACS 2019–2023 5-Year Estimates. Page data updated 2026-08-02.

Working ClassLow Snow Area

Map, Quick Facts & Location

Quick Facts

Local time
Population
5,116
Median Income
$56,956
-24% vs US avg
Home Value
$154,700
-56% vs US avg
Median Rent
$555
-52% vs US avg
Median Age
46.8 yrs
+20% vs US avg
Area Code
Congress
Top Ancestry
GermanEnglishIrish
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Location
Coordinates
42.0148, -94.3767
Elevation
1,055 ft
Land Area
167.6 sq mi
Water Area
0.6 sq mi (0% water)

At a glance

Population
5,116
Density
N/A
Median income
$56,956
-24% vs US avg
Home value
$154,700
-56% vs US avg
Median rent
$555
-52% vs US avg
Timezone

Overview of ZIP Code 50129

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What to know about ZIP 50129

ZIP code 50129 covers Jefferson, IA in Greene County with a population of about 5,116.

At a glance, the area shows median age of 46.8 versus a U.S. median of about 38.9.

It sits in telephone area code 515; U.S. House district IA-3; the DES MOINES - AMES media market.

Income and economy in Jefferson, IA

Median household income in ZIP 50129 is about $56,956 — about 24% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 8.2%; unemployment rate near 2.0%; 21.8% of adults with a bachelor’s degree or higher (about 11.9 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Healthcare, Retail trade, and Education; about 8.0% of workers reporting work-from-home (about 7.2 points below the U.S. share (15.2%)); a mean commute of about 180.0 minutes (U.S. average near 26.8).

Housing and affordability in ZIP 50129

Median home value is about $154,700 — about 56% below the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $555 (about 52% below the U.S. median rent ($1,163)), and owner-occupancy near 73.1% (about 7.7 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 50129 in Jefferson, IA, a household would need roughly $43,000 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 $994. That sits below the local median household income ($56,956), 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.

Climate risk and migration signals

FEMA’s National Risk Index rates natural-hazard risk for Jefferson city, IA as Very Low (composite score 31.8), which is relatively lower than many U.S. communities. The strongest component scores on US5 are hurricane (12.8) and flood (12.0). 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 Jefferson city, IA show little to no average snow and around 35.3 inches of annual precipitation.

IRS migration statistics show a net inflow of about 293 for ZIP 50129 (Jefferson 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.

Nearby (from this ZIP)

Airport FOD (38.4 miles (61.7 km)) · Iowa Central Community College (34.0 miles (54.7 km)) · Lewis & Clark National Historic Trail (95.3 miles (153.3 km)) · VA: Carroll CBOC (25.4 miles (40.8 km))

Full lists and map pins are in the Infrastructure section below.