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Johnson City city, TX

ZIP Code 78636 — Johnson City city, TX 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
3,842
Median Income
$59,625
-21% vs US avg
Home Value
$458,800
+32% vs US avg
Median Rent
$849
-27% vs US avg
Median Age
52.7 yrs
+35% vs US avg
Area Code
Congress
Top Ancestry
GermanEnglishIrish
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Location
Coordinates
30.3169, -98.4250
Elevation
1,137 ft
Land Area
349.6 sq mi
Water Area
2.8 sq mi (1% water)

At a glance

Population
3,842
Density
N/A
Median income
$59,625
-21% vs US avg
Home value
$458,800
+32% vs US avg
Median rent
$849
-27% vs US avg
Timezone

Overview of ZIP Code 78636

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What to know about ZIP 78636

ZIP code 78636 covers Johnson City, TX in Blanco County with a population of about 3,842.

At a glance, the area shows median age of 52.7 versus a U.S. median of about 38.9.

It sits in telephone area code 830; U.S. House district TX-21; the AUSTIN media market.

Income and economy in Johnson City, TX

Median household income in ZIP 78636 is about $59,625 — about 21% below the U.S. median ($75,149).

On socioeconomic markers, US5 shows a poverty rate of 10.7%; unemployment rate near 2.8%; 29.4% of adults with a bachelor’s degree or higher (about 4.3 points below the national share (33.7%)).

Labor and commute patterns include leading industry context around Manufacturing, Professional services, and Public administration; about 13.6% of workers reporting work-from-home (about 1.6 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 78636

Median home value is about $458,800 — about 32% above the U.S. median home value ($348,079).

Housing tenure and rents show median gross rent around $849 (about 27% below the U.S. median rent ($1,163)), and owner-occupancy near 67.8% (about 2.4 points above the national owner-occupancy rate (65.4%)).

To comfortably buy a median-priced home in ZIP 78636 in Johnson City, TX, a household would need roughly $126,000 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 $2,947. That is about 111% above the local median household income ($59,625), 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.

Climate risk and migration signals

FEMA’s National Risk Index rates natural-hazard risk for Johnson City city, TX as Very Low (composite score 33.0), which is relatively lower than many U.S. communities. The strongest component scores on US5 are wildfire (74.8) and hurricane (52.3). 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 Johnson City city, TX show little to no average snow and around 33.0 inches of annual precipitation.

IRS migration statistics show a net inflow of about 181 for ZIP 78636 (Johnson City 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.

Nearby (from this ZIP)

Airport AUS (46.3 miles (74.5 km)) · The Recording Conservatory of Austin (35.5 miles (57.2 km)) · Lyndon B Johnson National Historical Park (11.8 miles (18.9 km)) · VA: Cedar Park CBOC (38.3 miles (61.6 km))

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