Most populous ZIP codes in Missouri
Top 25 most populous ZIP codes in Missouri. #1 is 63376 (St. Peters) with about 74,876 residents. Compare population, income, and housing on US5.
These ZIP codes have the largest populations in Missouri. Population totals are aggregated from published ZIP-area Census estimates on US5.
The largest codes are 63376 (St. Peters) with about 74,876 residents; 65203 (Columbia) with about 59,663 residents; 65807 (Springfield) with about 56,680 residents.
Open any ZIP for a full demographics, income, and housing profile, or return to the Missouri state page for the complete ZIP table.
Ranked ZIP codes
| # | ZIP | City | County | Population | Population | Income | Home value |
|---|---|---|---|---|---|---|---|
| 1 | 63376 | St. Peters | St. Charles County | 74,876 | 74,876 | $94,921 | $255,500 |
| 2 | 65203 | Columbia | Boone County | 59,663 | 59,663 | $80,442 | $319,100 |
| 3 | 65807 | Springfield | Greene County | 56,680 | 56,680 | $50,271 | $174,000 |
| 4 | 63021 | Ballwin | St. Louis County | 56,297 | 56,297 | $113,822 | $324,300 |
| 5 | 63366 | O'Fallon | St. Charles County | 54,449 | 54,449 | $98,237 | $283,900 |
| 6 | 63301 | St. Charles | St. Charles County | 51,625 | 51,625 | $83,551 | $249,400 |
| 7 | 63129 | Oakville | St. Louis County | 51,356 | 51,356 | $91,920 | $278,800 |
| 8 | 63385 | Wentzville | St. Charles County | 50,420 | 50,420 | $111,851 | $321,300 |
| 9 | 63031 | Florissant | St. Louis County | 50,258 | 50,258 | $71,783 | $144,500 |
| 10 | 63123 | Affton | St. Louis County | 49,826 | 49,826 | $74,187 | $205,300 |
| 11 | 65201 | Columbia | Boone County | 49,811 | 49,811 | $46,177 | $229,300 |
| 12 | 65202 | Columbia | Boone County | 47,543 | 47,543 | $69,740 | $202,300 |
| 13 | 63303 | St. Charles | St. Charles County | 46,627 | 46,627 | $98,031 | $301,700 |
| 14 | 65802 | Springfield | Greene County | 46,005 | 46,005 | $51,080 | $162,400 |
| 15 | 63368 | O'Fallon | St. Charles County | 45,862 | 45,862 | $118,811 | $327,700 |
| 16 | 63026 | Fenton | Jefferson County | 45,267 | 45,267 | $96,145 | $281,900 |
| 17 | 63304 | Weldon Spring | St. Charles County | 43,389 | 43,389 | $114,124 | $331,300 |
| 18 | 65803 | Springfield | Greene County | 43,159 | 43,159 | $46,539 | $158,200 |
| 19 | 63017 | Chesterfield | St. Louis County | 43,074 | 43,074 | $128,750 | $452,000 |
| 20 | 63116 | St. Louis | St. Louis city | 42,470 | 42,470 | $60,193 | $161,100 |
| 21 | 63033 | Florissant | St. Louis County | 42,258 | 42,258 | $63,979 | $157,400 |
| 22 | 64118 | Kansas City | Clay County | 42,213 | 42,213 | $70,290 | $206,200 |
| 23 | 63122 | Kirkwood | St. Louis County | 41,724 | 41,724 | $132,783 | $449,700 |
| 24 | 63136 | Jennings | St. Louis County | 41,314 | 41,314 | $40,388 | $77,300 |
| 25 | 65109 | Jefferson City | Cole County | 40,390 | 40,390 | $72,430 | $204,700 |
Frequently asked questions
What are the most populous ZIP codes in Missouri?
The largest ZIP on this board is 63376 (St. Peters) with about 74,876 residents. See the ranked table for the full top 25.
How does US5 rank ZIP codes in Missouri?
We rank indexable ZIP codes by population from high to low.
Where can I explore all ZIP codes in Missouri?
Visit the Missouri state page for the full ZIP table, demographics summary, and sortable income/housing columns.