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ZIP Code 78642

Williamson, Texas

ZCTA 78642

Juniper

ZIP Code 78642 is in the lowest 18% nationally for FEMA risk score. It also sits in the highest 6% nationally for median income. And it sits in the highest 17% nationally for median rent.

Typical Home Valuemedian home value (ACS), re-priced to today on the FHFA index

$509,118

Higher than 76% of U.S. ZIP codes
Home Price Growth, Past Five Years

55%

Higher than 58% of U.S. ZIP codes
FEMA Risk Score0–100; 0 = lowest modelled risk, 100 = highest, vs places of the same type

37

Lower than 82% of U.S. ZIP codes

The boundary of ZIP Code 78642, in Williamson, Texas.

The basics

Total Population

26,434

Median Age

36.9

Population Density

237.86

Home values & property tax

Median Property Tax

$8,782

Property Tax Rateyearly tax as a share of home value

1.7%

Cost of living & affordability

Home Price vs Incomeyears of income to buy a typical home

3.81×

Higher than 68% of U.S. ZIP codes
Median Income

$132,958

Higher than 94% of U.S. ZIP codes
Median Rent

$1,658

Higher than 83% of U.S. ZIP codes

Home prices & appreciation

Home Price Growth, Past Year

0.78%

Lower than 71% of U.S. ZIP codes
Pandemic Price Run-Up2019–20 low → 2022–23 peak

61%

2008 Crash: Peak-to-Trough Drophow far prices fell, 2007 → 2011

0.72%

Climate & weather

Summer Avg High (°F)

93.3

Winter Avg Low (°F)

41.3

Avg Temperature (°F)

67.4

Hot Days/yr (>90°F)

102.4

Freezing Days/yr (<32°F)

19.5

Annual Precipitation (in)

33.8

Annual Snowfall (in)

0

Flood & disaster risk

FEMA Risk Score0–100; 0 = lowest modelled risk, 100 = highest, vs places of the same type

37

Lower than 82% of U.S. ZIP codes

The full report

Six pillars — each with percentile benchmarks, 16-year trends, and per-metric detail.

  • People

  • Work & Money

  • Housing

  • Amenities

  • Climate

  • Environment & Risk

ZIP Code 78642: frequently asked questions

What is the typical home value in ZIP Code 78642?
The estimated median home value in ZIP Code 78642 today is $509,118, higher than 76% of U.S. ZIP codes.
How much is property tax in ZIP Code 78642?
The median annual property tax in ZIP Code 78642 is $8,782, an effective rate of 1.7% of home value.
Is ZIP Code 78642 expensive to live in?
Homes in ZIP Code 78642 cost about 3.81× the median household income, higher than 68% of U.S. ZIP codes.
What is the average rent in ZIP Code 78642?
The median gross rent in ZIP Code 78642 is $1,658 a month, higher than 83% of U.S. ZIP codes.
How much have home prices grown in ZIP Code 78642?
Home prices in ZIP Code 78642 have moved 55% over the past five years (0.78% in the past year), per the FHFA House Price Index.
How many people live in ZIP Code 78642?
ZIP Code 78642 has a population of 26,434, about 237.86 people per square mile, per the U.S. Census American Community Survey. The median age is 36.9.
What is the weather like in ZIP Code 78642?
ZIP Code 78642 averages 67.4°F year-round, summer highs near 93.3°F, winter lows around 41.3°F (NOAA 1991–2020 normals).
Is ZIP Code 78642 at risk of flooding or natural disasters?
ZIP Code 78642's FEMA National Risk Index score is 37 (lower than 82% of U.S. ZIP codes). Its greatest modeled natural hazard is inland flooding.

Sources: U.S. Census ACS, FEMA National Risk Index, FHFA House Price Index, OpenStreetMap contributors (ODbL), EPA. Explore the map →

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