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ZIP Code 63303

St. Charles, Missouri

ZCTA 63303

Juniper

ZIP Code 63303 is in the lowest 32% nationally for FEMA risk score. It also sits in the highest 20% nationally for median income. And it sits in the highest 27% nationally for median rent.

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

$377,516

Higher than 57% of U.S. ZIP codes
Home Price Growth, Past Five Years

51%

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

50.7

Lower than 68% of U.S. ZIP codes

The boundary of ZIP Code 63303, in St. Charles, Missouri.

The basics

Total Population

46,089

Median Age

41.4

Population Density

2,333.12

Home values & property tax

Median Property Tax

$3,416

Property Tax Rateyearly tax as a share of home value

1.1%

Cost of living & affordability

Home Price vs Incomeyears of income to buy a typical home

3.24×

Near the U.S. ZIP codes median
Median Income

$99,138

Higher than 80% of U.S. ZIP codes
Median Rent

$1,374

Higher than 73% of U.S. ZIP codes

Home prices & appreciation

Home Price Growth, Past Year

5.4%

Higher than 66% of U.S. ZIP codes
Pandemic Price Run-Up2019–20 low → 2022–23 peak

44%

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

16%

Climate & weather

Summer Avg High (°F)

86.6

Winter Avg Low (°F)

24.2

Avg Temperature (°F)

55.3

Hot Days/yr (>90°F)

39.3

Freezing Days/yr (<32°F)

102.5

Annual Precipitation (in)

42.3

Annual Snowfall (in)

14.8

Flood & disaster risk

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

50.7

Lower than 68% 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 63303: frequently asked questions

What is the typical home value in ZIP Code 63303?
The estimated median home value in ZIP Code 63303 today is $377,516, higher than 57% of U.S. ZIP codes.
How much is property tax in ZIP Code 63303?
The median annual property tax in ZIP Code 63303 is $3,416, an effective rate of 1.1% of home value.
Is ZIP Code 63303 expensive to live in?
Homes in ZIP Code 63303 cost about 3.24× the median household income, near the U.S. ZIP codes median.
What is the average rent in ZIP Code 63303?
The median gross rent in ZIP Code 63303 is $1,374 a month, higher than 73% of U.S. ZIP codes.
How much have home prices grown in ZIP Code 63303?
Home prices in ZIP Code 63303 have moved 51% over the past five years (5.4% in the past year), per the FHFA House Price Index.
How many people live in ZIP Code 63303?
ZIP Code 63303 has a population of 46,089, about 2,333.12 people per square mile, per the U.S. Census American Community Survey. The median age is 41.4.
What is the weather like in ZIP Code 63303?
ZIP Code 63303 averages 55.3°F year-round, summer highs near 86.6°F, winter lows around 24.2°F (NOAA 1991–2020 normals). It sees about 14.8 inches of snow a year.
Is ZIP Code 63303 at risk of flooding or natural disasters?
ZIP Code 63303's FEMA National Risk Index score is 50.7 (lower than 68% 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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