St. Clair County, MO ZIP Codes
12 ZIP codes cover all or part of St. Clair County, Missouri. The Census Bureau counts 9,587 residents in the county, with a median household income of $53,043 and a median home value of $157,100. Median household income ranges from $44,880 in 64776 to $61,641 in 64740. Its largest communities include Appleton City, Osceola, Lowry City, Rockville and Roscoe.
St. Clair County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 9,587 |
| Households | 4,071 |
| Median household income | $53,043 |
| Median home value | $157,100 |
| Median age | 46.1 |
| Median rent | $622 |
All 12 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 20,685 |
| Households (sum of ZIP codes) | 8,587 |
| Median household income, range across ZIP codes | $44,880 (64776) to $61,641 (64740) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $50,169 |
| Homeowners | 73.8% |
| Households with kids under 18 | 27.1% |
| Moved in the past year | 8.9% |
| Carrier routes in EDDM2GO's route library | 25 routes, 8,343 homes (8 of 12 ZIP codes) |
Top facts
- Highest median household income in St. Clair County: 64740 ($61,641)
- Most residents: 64744 (8,242 people)
- Highest homeownership: 64740 (91.4% own their home)
- Most households with kids: 64738 (35.9% of households)
- Most new movers: 64763 (16.2% moved in last year)
- Youngest median age: 64763 (41.5 years)
- Highest median home value: 64738 ($211,700)
Every ZIP code in St. Clair County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 64744 | El Dorado Springs | 8,242 | 3,349 | $47,685 | $167,900 | 68.9% | 30.6% | 5.9% | 8 | 3,491 | 28% of its land |
| 64776 | Osceola | 3,374 | 1,486 | $44,880 | $149,100 | 73.8% | 25.4% | 11.6% | 5 | 1,959 | 94% of its land |
| 64724 | Appleton City | 1,999 | 821 | $49,338 | $115,600 | 68.5% | 26.3% | 8.7% | 3 | 880 | 63% of its land |
| 64763 | Lowry City | 1,676 | 667 | $54,821 | $151,300 | 65.4% | 29.7% | 16.2% | — | — | 100% of its land |
| 64740 | Deepwater | 1,469 | 677 | $61,641 | $147,300 | 91.4% | 10.6% | 10.3% | 2 | 960 | 31% of its land |
| 64738 | Collins | 1,368 | 529 | $61,493 | $211,700 | 90.7% | 35.9% | 11.6% | 2 | 583 | 100% of its land |
| 65774 | Weaubleau | 855 | 403 | $31,674 | $92,800 | 74.2% | 18.6% | 7.0% | 2 | 406 | 21% of its land |
| 64783 | Schell City | 607 | 257 | $47,321 | $105,600 | 79.0% | 23.3% | 8.4% | — | — | 27% of its land |
| 64750 | Harwood | 439 | 122 | — | $211,500 | 94.3% | 45.9% | 8.0% | 2 | 191 | 11% of its land |
| 64780 | Rockville | 364 | 177 | $44,107 | $108,100 | 80.8% | 11.9% | 12.9% | 1 | 286 | 58% of its land |
| 65735 | Hickory County | 212 | 71 | $72,724 | $560,900 | 83.1% | 33.8% | 0.0% | — | — | 20% of its land |
| 64781 | Roscoe | 80 | 28 | $43,056 | — | 75.0% | 39.3% | 7.5% | — | — | 100% of its land |
A ZIP code is listed for St. Clair County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Appleton City — 1,221 residents · 1 ZIP code
- Osceola — 1,042 residents · 1 ZIP code
- Lowry City — 618 residents · 1 ZIP code
- Rockville — 153 residents · 1 ZIP code
- Roscoe — 101 residents · 3 ZIP codes
- Collins — 76 residents · 1 ZIP code
- Vista — 46 residents · 1 ZIP code
- Gerster — 7 residents · 1 ZIP code
Rankings
- Richest ZIP codes in St. Clair County — 6 ZIP codes ranked
- ZIP codes with the highest home values in St. Clair County — 6 ZIP codes ranked
- ZIP codes with the highest homeownership in St. Clair County — 6 ZIP codes ranked
- ZIP codes with the most families with kids in St. Clair County — 6 ZIP codes ranked
- ZIP codes with the most new movers in St. Clair County — 6 ZIP codes ranked
- Youngest ZIP codes in St. Clair County — 6 ZIP codes ranked
- Oldest ZIP codes in St. Clair County — 6 ZIP codes ranked
- Fastest-growing ZIP codes in St. Clair County — 6 ZIP codes ranked
Price a mailing to St. Clair County ZIP codes
EDDM guides
Pick carrier routes on the EDDM route map
Frequently asked questions
- What ZIP codes are in St. Clair County, MO?
- 64744, 64776, 64724, 64763, 64740, 64738, 65774, 64783, 64750, 64780, 65735 and 64781. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of St. Clair County?
- 9,587 residents in 4,071 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in St. Clair County?
- $53,043 for the county as a whole. Its ZIP codes range from $44,880 (64776) to $61,641 (64740).
- Which St. Clair County ZIP code has the highest median household income?
- 64740, at $61,641, among ZIP codes with at least 1,000 residents. See the full ranking of St. Clair County ZIP codes by income.
- How many carrier routes and mailboxes are in St. Clair County?
- For the 8 of 12 ZIP codes in EDDM2GO's stored route library: 25 carrier routes reaching 8,343 residential and 414 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.