First three digits · Michigan
ZIP Codes Starting with
20 ZIP codes start with 491, sorted at the Grand Rapids, MI (SCF 493) sectional center (USPS labeling list L005, effective October 1, 2026) in Michigan: 20 residential ZIP codes across 2 counties (Census 2020 ZCTAs and GeoNames postal codes, October 2026).
What do the digits 491 mean?
The first digit, 4, is one of ten national areas (Indiana, Kentucky, Michigan and Ohio). The first three, 491, route mail to a sectional center: USPS labeling list L005 (effective October 1, 2026) sends letters for 491 to the Grand Rapids, MI (SCF 493) facility. The last two digits pick the delivery area. By residents, the largest town names among the 491 ZIP codes are Niles, Berrien Springs, Stevensville, Edwardsburg, Buchanan and Bridgman.
The same facility sorts 5 prefixes, 246 ZIP codes in all: 490, 491, 493, 494, 495.
Where are the 491 ZIP codes?
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).
All ZIP codes starting with 491
| County | ||||||
|---|---|---|---|---|---|---|
| 49101 | Baroda | Berrien County | 2,947 | 143 | $75k | $252k |
| 49102 | Berrien Center | Berrien County | 1,472 | 98 | $63k | $262k |
| 49103 | Berrien Springs | Berrien County | 11,590 | 259 | $66k | $229k |
| 49104 | Berrien Springs | Berrien County | 383 | 2,280 | – | – |
| 49106 | Bridgman | Berrien County | 4,741 | 323 | $73k | $262k |
| 49107 | Buchanan | Berrien County | 10,323 | 156 | $66k | $190k |
| 49111 | Eau Claire | Berrien County | 3,159 | 73 | $71k | $176k |
| 49112 | Edwardsburg | Cass County | 10,544 | 241 | $62k | $249k |
| 49113 | Galien | Berrien County | 1,742 | 49 | $59k | $172k |
| 49115 | Harbert | Berrien County | 147 | 173 | – | $340k |
| 49116 | Lakeside | Berrien County | 86 | 56 | $128k | – |
| 49117 | New Buffalo | Berrien County | 3,358 | 176 | $75k | $488k |
| 49119 | New Troy | Berrien County | 134 | 265 | $57k | $138k |
| 49120 | Niles | Berrien County | 36,495 | 313 | $65k | $178k |
| 49125 | Sawyer | Berrien County | 1,990 | 152 | $80k | $342k |
| 49126 | Sodus | Berrien County | 1,623 | 106 | $77k | $152k |
| 49127 | Stevensville | Berrien County | 11,155 | 651 | $93k | $297k |
| 49128 | Three Oaks | Berrien County | 3,450 | 79 | $67k | $258k |
| 49129 | Union Pier | Berrien County | 669 | 133 | $106k | $654k |
| 49130 | Union | Cass County | 1,258 | 107 | $77k | $342k |
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; GeoNames postal codes (CC BY 4.0) for codes without a residential area.