63348 ZIP Code, Foristell, MO
63348 is a ZIP code in Foristell, Missouri — mostly in St. Charles County (78% of its land), with smaller parts in Warren and Lincoln counties. It covers 56 square miles of land. The closest ZIP codes are 63385, 63390 and 63365. 10,394 people live here in 3,781 households. With about 186 people per square mile it is lightly settled, and most homes are owner-occupied (89%). Median household income is $115,661, well above the Missouri median of $70,702.
Quick facts
- Mailing city: Foristell, MO
- County: St. Charles County
- Land area: 56 sq mi
- Population: 10,394
- Median household income: $115,661
- Carrier routes: 6 (3,253 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 10,394 |
| Households | 3,781 |
| Median household income | $115,661 |
| Income per person | $50,602 |
| Median age | 43 |
| Homeowners | 89.1% |
| Median home value | $386,200 |
| Median rent | $1,503 |
| Bachelor's degree or higher | 33.9% |
| Average commute (minutes) | 30.8 |
| Households with kids under 18 | 35.7% |
| Moved in the past year | 11.0% |
| Below the poverty line | 2.0% |
| Broadband internet | 92.1% |
| Speak a non-English language at home | 2.6% |
Household income
| % of households | Value |
|---|---|
| <$10K | 1.2% |
| $10–15K | 0.6% |
| $15–25K | 0.8% |
| $25–35K | 2.9% |
| $35–50K | 7.7% |
| $50–75K | 19.9% |
| $75–100K | 8.0% |
| $100–150K | 26.3% |
| $150–200K | 15.0% |
| $200K+ | 17.6% |
Age
| % of all residents | Value |
|---|---|
| <10 | 13.8% |
| 10–19 | 13.8% |
| 20–24 | 3.0% |
| 25–34 | 9.3% |
| 35–44 | 14.0% |
| 45–54 | 10.9% |
| 55–64 | 16.1% |
| 65–74 | 13.8% |
| 75+ | 5.5% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 55.7% |
| Owned outright | 29.2% |
| Rented | 10.3% |
| Vacant | 4.8% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 96.2% |
| Townhome | 0.0% |
| 2–4 units | 0.1% |
| 5–19 units | 0.6% |
| 20+ units | 0.0% |
| Mobile / other | 3.0% |
Businesses in 63348
157 business establishments with 947 employees (ZIP Codes Business Patterns 2023).
- Construction: 56
- Professional, Scientific, and Technical Services: 16
- Administrative and Support and Waste Management and Remediation Services: 16
- Retail Trade: 12
- Other Services (except Public Administration): 12
- Transportation and Warehousing: 10
- Wholesale Trade: 6
- Real Estate and Rental and Leasing: 6
EDDM carrier routes
63348 has 6 USPS carrier routes with 3,253 residential and 62 business mailboxes. Open the EDDM route map.
Carrier routes in 63348
63348 has 6 USPS carrier routes (6 rural (R)) with 3,253 residential and 62 business mailboxes. Routes range from 381 homes (R007) to 640 homes (R005); the median route has 550 homes. The Census counted 3,781 households in 63348 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 1 |
| 500–749 | 5 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 63348 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R004 — USPS business mailboxes 34, 551 homes
- Route R006 — USPS business mailboxes 10, 549 homes
- Route R003 — USPS business mailboxes 5, 627 homes
- Route R007 — USPS business mailboxes 5, 381 homes
- Route R005 — USPS business mailboxes 4, 640 homes
Select these 5 routes on the route map
Every carrier route in 63348
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| R001 | Rural | 505 | 4 | $119,119 | — | — | — |
| R003 | Rural | 627 | 5 | $111,197 | — | — | — |
| R004 | Rural | 551 | 34 | $111,197 | — | — | — |
| R005 | Rural | 640 | 4 | $75,053 | — | — | — |
| R006 | Rural | 549 | 10 | $115,331 | — | — | — |
| R007 | Rural | 381 | 5 | $122,569 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 63348 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 63385 — Wentzville city, MO (4.8 mi)
- 63390 — Innsbrook village, MO (5.3 mi)
- 63365 — New Melle city, MO (6.5 mi)
- 63367 — Lake St. Louis city, MO (8.1 mi)
- 63380 — Truesdale city, MO (9.7 mi)
- 63362 — Moscow Mills city, MO (10.7 mi)
- 63341 — Defiance CDP, MO (11.4 mi)
- 63368 — O'Fallon city, MO (11.9 mi)
Areas that include 63348
- Foristell, MO ZIP codes — 1 ZIP code
- Flint Hill, MO ZIP codes — 2 ZIP codes
- St. Charles County ZIP codes — 14 ZIP codes
- Warren County ZIP codes — 8 ZIP codes
- Missouri ZIP code data
Where it ranks
- No. 5 of 11: highest median household income in St. Charles County
- No. 3 of 11: highest median home value in St. Charles County
- No. 3 of 11: highest share of owner-occupied homes in St. Charles County
- No. 4 of 11: highest share of households with children in St. Charles County
- No. 4 of 11: highest share of residents who moved in during the past year in St. Charles County
- No. 2 of 11: highest median age in St. Charles County
- No. 1 of 11: fastest population growth in St. Charles County
Mail every home in 63348
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 63348, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 63348 in?
- 63348 is a Foristell, MO mailing address. By land area, 10% lies inside Foristell and 3% lies inside Wentzville; the rest is outside any Census-defined city or community.
- What county is 63348 in?
- 63348 is mostly in St. Charles County (78% of its land), with smaller parts in Warren and Lincoln counties.
- What is the population of 63348?
- About 10,394 people (±1,020), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 10,051.
- What is the median household income in 63348?
- $115,661 (±$11,915), compared with $70,702 for Missouri as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 63348?
- 6 USPS carrier routes with 3,253 residential and 62 business mailboxes (3,314 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 63348?
- The closest, measured center to center: 63385 (4.8 mi, Wentzville), 63390 (5.3 mi, Innsbrook), 63365 (6.5 mi, New Melle), 63367 (8.1 mi, Lake St. Louis), 63380 (9.7 mi, Truesdale) and 63362 (10.7 mi, Moscow Mills).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.