Jefferson County Post Offices


Click on the Post Office for all operating hours, servcies, and other information.

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1. Arnold Post Office
1314 Jeffco Blvd
Arnold, MO 63010
636-296-0608 Today 9:00am - 5:30pmpassport Passports
2. Barnhart Post Office
1635 Marriott Ln
Barnhart, MO 63012
636-464-3606 Today 9:00am - 1:00pm,
2:00pm - 5:00pm
3. Cedar Hill Post Office
7050 State Road Bb
Cedar Hill, MO 63016
636-285-0481 Today 9:00am - 11:30am,
12:30pm - 4:30pm
4. Crystal City Post Office
324 Bailey Rd
Crystal City, MO 63019
636-937-5430 Today 9:00am - 1:00pm,
2:00pm - 3:30pm
5. De Soto Post Office
950 Boyd St
De Soto, MO 63020
636-586-5617 Today 8:30am - 4:15pm
6. Dittmer Post Office
7768 State Route 30
Dittmer, MO 63023
636-285-0935 Today 8:30am - 10:00am,
12:00pm - 4:00pm
7. Eureka Post Office
101 Thresher Dr
Eureka, MO 63025
636-938-1352 Today 9:00am - 6:00pm
8. Festus Post Office
109 Walnut St
Festus, MO 63028
636-937-2107 Today 8:30am - 5:30pm
9. Fletcher Post Office
7682 Old Highway H
Fletcher, MO 63030
573-678-2786 Today 9:00am - 11:00am
10. Grubville Post Office
9994 State Road Y
Grubville, MO 63041
636-285-5009 Today 8:00am - 12:00pm
11. Hematite Post Office
3677 State Road P
Hematite, MO 63047
636-937-9131 Today 1:00pm - 5:00pm
12. Herculaneum Post Office
1234 Commercial Blvd
Herculaneum, MO 63048
636-937-7220 Today 8:00am - 1:00pm,
2:00pm - 4:30pm
13. High Ridge Post Office
2829 High Ridge Blvd
High Ridge, MO 63049
636-677-1786 Today 9:30am - 5:30pm
14. Hillsboro Post Office
4620 Yeager Rd
Hillsboro, MO 63050
636-789-2231 Today 8:30am - 5:00pm
15. House Springs Post Office
4650 Gravois Rd
House Springs, MO 63051
636-671-1384 Today 8:30am - 4:30pm
16. Imperial Post Office
6035 W Outer Rd
Imperial, MO 63052
636-464-3538 Today 8:00am - 4:30pm
17. Kimmswick Post Office
6057 Front St
Kimmswick, MO 63053
636-461-2273 Today 9:00am - 12:00pm
18. Liguori Post Office
1 Liguori Dr
Liguori, MO 63057
636-464-8446 Today 11:00am - 12:30pm,
1:30pm - 4:00pm
19. Mapaville Post Office
3823 State Road Z
Mapaville, MO 63065
636-937-4112 Today 1:00pm - 5:00pm
20. Morse Mill Post Office
8415 State Road Ee
Morse Mill, MO 63066
636-285-3552 Today 8:00am - 12:00pm
21. Pevely Post Office
305 Main St
Pevely, MO 63070
636-479-4405 Today 9:00am - 11:00am,
12:00pm - 4:00pm
22. Valles Mines Post Office
3225 State Road V
Valles Mines, MO 63087
636-586-3069 Today 8:15am - 12:30pm,
1:30pm - 3:15pm
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