First three digits · Florida
ZIP Codes Starting with
58 ZIP codes start with 320, sorted at the Jacksonville, FL (SCF 320) sectional center (USPS labeling list L005, effective October 1, 2026) in Florida: 46 residential ZIP codes across 13 counties and 12 PO Box or single-organization codes (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 320 mean?
The first digit, 3, is one of ten national areas (Alabama, Florida, Georgia, Mississippi, Tennessee and Armed Forces Americas). The first three, 320, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 320 to the Jacksonville, FL (SCF 320) facility. The last two digits pick the delivery area. By residents, the largest town names among the 320 ZIP codes are Saint Augustine, Orange Park, Lake City, Middleburg, Fernandina Beach and Green Cove Springs.
The same facility sorts 7 prefixes, 310 ZIP codes in all: 313, 314, 315, 320, 322, 326, 344.
Where are the 320 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 320
| County | ||||||
|---|---|---|---|---|---|---|
| 32003 | Fleming Island | Clay County | 29,766 | 1,879 | $117k | $422k |
| 32004 | Ponte Vedra Beach | St. Johns County | PO Box or unique | – | – | – |
| 32006 | Fleming Island | Clay County | PO Box or unique | – | – | – |
| 32007 | Bostwick | Putnam County | PO Box or unique | – | – | – |
| 32008 | Branford | Lafayette County | 5,840 | 39 | $60k | $169k |
| 32009 | Bryceville | Nassau County | 4,045 | 46 | $73k | $278k |
| 32011 | Callahan | Nassau County | 15,421 | 92 | $77k | $270k |
| 32013 | Day | Lafayette County | 216 | 19,636 | – | – |
| 32024 | Lake City | Columbia County | 20,670 | 142 | $61k | $218k |
| 32025 | Lake City | Columbia County | 22,948 | 219 | $55k | $190k |
| 32026 | Raiford | Bradford County | 3,311 | 3,655 | – | – |
| 32030 | Doctors Inlet | Clay County | PO Box or unique | – | – | – |
| 32033 | Elkton | St. Johns County | 4,556 | 58 | $86k | $331k |
| 32034 | Fernandina Beach | Nassau County | 41,029 | 631 | $99k | $538k |
| 32035 | Fernandina Beach | Nassau County | PO Box or unique | – | – | – |
| 32038 | Fort White | Columbia County | 10,007 | 93 | $66k | $183k |
| 32040 | Glen Saint Mary | Baker County | 8,978 | 74 | $84k | $262k |
| 32041 | Yulee | Nassau County | PO Box or unique | – | – | – |
| 32042 | Graham | Bradford County | PO Box or unique | – | – | – |
| 32043 | Green Cove Springs | Clay County | 34,562 | 151 | $84k | $338k |
| 32044 | Hampton | Bradford County | 2,594 | 148 | $46k | – |
| 32046 | Hilliard | Nassau County | 10,593 | 54 | $72k | $235k |
| 32050 | Middleburg | Clay County | PO Box or unique | – | – | – |
| 32052 | Jasper | Hamilton County | 7,441 | 26 | $52k | $116k |
| 32053 | Jennings | Hamilton County | 4,000 | 38 | $45k | $103k |
| 32054 | Lake Butler | Union County | 12,581 | 58 | $66k | $185k |
| 32055 | Lake City | Columbia County | 17,559 | 95 | $61k | $184k |
| 32056 | Lake City | Columbia County | PO Box or unique | – | – | – |
| 32058 | Lawtey | Bradford County | 4,655 | 65 | $66k | $191k |
| 32059 | Lee | Madison County | 3,052 | 26 | $56k | $109k |
| 32060 | Live Oak | Suwannee County | 22,467 | 57 | $58k | $168k |
| 32061 | Lulu | Columbia County | 101 | 6 | – | – |
| 32062 | McAlpin | Suwannee County | 2,942 | 44 | $58k | $247k |
| 32063 | Macclenny | Baker County | 14,611 | 199 | $76k | $261k |
| 32064 | Live Oak | Suwannee County | 7,758 | 835 | $51k | $166k |
| 32065 | Orange Park | Clay County | 41,578 | 2,099 | $98k | $299k |
| 32066 | Mayo | Lafayette County | 6,892 | 25 | $63k | $168k |
| 32067 | Orange Park | Clay County | PO Box or unique | – | – | – |
| 32068 | Middleburg | Clay County | 58,983 | 511 | $84k | $290k |
| 32071 | O Brien | Suwannee County | 4,186 | 40 | $57k | $165k |
| 32072 | Olustee | Baker County | 43 | 2 | – | – |
| 32073 | Orange Park | Clay County | 43,561 | 2,587 | $77k | $288k |
| 32079 | Penney Farms | Clay County | 419 | 927 | $41k | – |
| 32080 | Saint Augustine | St. Johns County | 20,894 | 1,329 | $93k | $536k |
| 32081 | Ponte Vedra | St. Johns County | 29,784 | 844 | $132k | $643k |
| 32082 | Ponte Vedra Beach | St. Johns County | 29,289 | 878 | $125k | $793k |
| 32083 | Raiford | Union County | 2,561 | 65 | $55k | $115k |
| 32084 | Saint Augustine | St. Johns County | 37,291 | 826 | $74k | $344k |
| 32085 | Saint Augustine | St. Johns County | PO Box or unique | – | – | – |
| 32086 | Saint Augustine | St. Johns County | 34,855 | 530 | $77k | $383k |
| 32087 | Sanderson | Baker County | 4,608 | 29 | $67k | $243k |
| 32091 | Starke | Bradford County | 14,719 | 97 | $63k | $206k |
| 32092 | Saint Augustine | St. Johns County | 53,071 | 428 | $131k | $490k |
| 32094 | Wellborn | Suwannee County | 3,464 | 62 | $64k | $197k |
| 32095 | Saint Augustine | St. Johns County | 21,399 | 373 | $136k | $525k |
| 32096 | White Springs | Columbia County | 3,663 | 21 | $50k | $112k |
| 32097 | Yulee | Nassau County | 26,700 | 214 | $93k | $334k |
| 32099 | Jacksonville | Duval County | PO Box or unique | – | – | – |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.