The Town FilesWeldon Spring, Missouri
City in St. Charles County · population 5,326 (2020 Census)
- Median home
- $544,300
- Household income
- $158,548
- Jan low / Jul high
- 21° / 88°
- Snow a year
- 14 in
- Tornadoes ≤10 mi since 1950
- 40
- Median age
- 52.2
Weldon Spring is a city of 5,326 people in St. Charles County, Missouri. The median home is worth $544,300, above the typical Missouri town ($153,900). It ranks better for families than 98% of Missouri towns, more upscale than 98% of Missouri towns, better for retirees than 94% of Missouri towns.
How Weldon Spring ranks
Percentile among Missouri towns with at least 500 people on The Town Files lifestyle rankings. 50 is typical for the state; 90 means better than 90% of Missouri towns.
Homes and cost of living
The median home in Weldon Spring is worth $544,300, above the typical Missouri town ($153,900). Homes cost about 3.4 times the median household income of $158,548, which is more affordable than 21% of Missouri towns. Median rent is $2,800 a month. 83.4% of households own their home.
| Housing | Weldon Spring | Typical Missouri town |
|---|---|---|
| Median home value | $544,300 | $153,900 |
| Median rent | $2,800 | $855 |
| Median household income | $158,548 | $56,368 |
| Home value ÷ income | 3.4× | 2.7× |
| Homeownership | 83.4% | 67.4% |
| Median year built | 1995 | 1972 |
| Seasonal / vacation homes | 0.7% | — |
Who lives in Weldon Spring
| People | Weldon Spring | Typical Missouri town |
|---|---|---|
| Median age | 52.2 | 38.6 |
| Age 65 and over | 28.5% | 17.7% |
| Under 18 | 20.0% | — |
| Bachelor's degree or higher | 57.9% | 18.9% |
| Below the poverty line | 0.7% | 14.6% |
| Veterans | 6.7% | — |
| Born outside the U.S. | 4.5% | — |
| Work from home | 31.1% | 7.9% |
| Average commute | 21.7 min | 23.1 min |
| Homes with broadband | 97.4% | 88.7% |
Weather in Weldon Spring
July highs average 87.5°F and January lows 21.2°F. About 44.4 inches of rain and melted snow fall a year, with 13.5 inches of snow (typical Missouri town: 11.1 in). Expect about 36 days a year at 90°F or hotter and 105 nights at or below freezing.
Tornadoes, storms and disasters
40 tornadoes have passed within 10 miles of Weldon Spring since 1950, compared with 23 for the typical Missouri town. 14 rated (E)F2 or stronger. The strongest, an EF4, struck on April 22, 2011 about 9.2 miles from the town center. Tornadoes within 10 miles have caused 4 deaths and 303 injuries since 1950. The most recent was on June 4, 2025.
Hail of 1 inch or larger has been reported within 10 miles 220 times; the largest was 4.00 inches on May 11, 2016.
Severe weather in St. Charles County since 1996
St. Charles County has been included in 28 federal disaster or emergency declarations since 1953, most often for flood, drought, tornado.
| Declared | Incident | Declaration |
|---|---|---|
| August 8, 2022 | Flood | DR-4665: Severe Storms And Flooding |
| March 26, 2020 | Biological | DR-4490: Covid-19 Pandemic |
| March 13, 2020 | Biological | EM-3482: Covid-19 |
| July 9, 2019 | Severe Storm | DR-4451: Severe Storms, Tornadoes, And Flooding |
| January 21, 2016 | Flood | DR-4250: Severe Storms, Tornadoes, Straight-Line Winds, And Flooding |
Jobs and pay in St. Charles County
St. Charles County had 162,611 jobs in 2024, paying an average of $60,105 a year. Unemployment was 2.5% in 2023; in Weldon Spring itself the ACS puts it at 4.2%.
Public schools in Weldon Spring
4 public schools with 2,408 students, about 13.8 students per teacher.
| School | Grades | Students | Per teacher |
|---|---|---|---|
| CASTLIO ELEM. | K-5 | 838 | 13.1 |
| BRYAN MIDDLE | 6-8 | 831 | 16.6 |
| INDEPENDENCE ELEM. | K-5 | 739 | 13.9 |
| WESTWOOD TRAIL ACADEMY | 2-12 | — | — |
Towns near Weldon Spring
- Cottleville, MO2.9 mi · 5,611 people · home $435,400
- Dardenne Prairie, MO4.0 mi · 12,743 people · home $432,000
- Chesterfield, MO5.4 mi · 49,999 people · home $472,500
- St. Peters, MO5.6 mi · 57,732 people · home $269,900
- O'Fallon, MO6.1 mi · 91,316 people · home $326,200
- Clarkson Valley, MO6.6 mi · 2,609 people · home $867,000
- Lake St. Louis, MO8.7 mi · 16,707 people · home $405,900
- Ellisville, MO9.0 mi · 9,985 people · home $366,600
Weldon Spring questions
Is Weldon Spring, Missouri a good place to retire?
On The Town Files lifestyle rankings, Weldon Spring scores better for retirees than 94% of Missouri towns and quieter than 61%. 28.5% of residents are 65 or older (median age 52.2).
How much does a house cost in Weldon Spring?
The median owner-occupied home in Weldon Spring is valued at $544,300 (Census ACS 2020–2024), against a median household income of $158,548, so homes cost about 3.4 times income. Median rent is $2,800 a month.
What is the weather like in Weldon Spring?
July highs average 87.5°F and January lows 21.2°F (NOAA 1991–2020 normals). It gets about 44.4 inches of precipitation a year and 13.5 inches of snow.
Does Weldon Spring get tornadoes?
40 tornadoes have passed within 10 miles of Weldon Spring since 1950 (NOAA Storm Events); the strongest was an EF4 on April 22, 2011. The typical Missouri town has had 23.
- U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024)
- U.S. Census Bureau, 2020 Census and 2025 Gazetteer (2020 / 2025)
- NOAA NCEI U.S. Climate Normals (1991–2020)
- NOAA NCEI Storm Events Database (1950–2026)
- FEMA OpenFEMA Disaster Declarations (this product uses the FEMA OpenFEMA API but is not endorsed by FEMA) (1953–2026)
- NCES Common Core of Data (2023–24)
- BLS Quarterly Census of Employment and Wages; USDA ERS county unemployment (BLS LAUS) (2000–2024)
- The Town Files lifestyle rankings, built from federal demographic, school, crime and housing data (2025)