Olmsted County, Minnesota ZIP codes
12 ZIP codes are in Olmsted County, plus 9 that cross in from neighboring counties. It's part of the Rochester, MN metro area.
- ZIP codes
- 12
- Population in these ZIPs
- 163,038
- Avg. median income
- $98,000population-weighted
- Cities & towns
- 7
Click anywhere on the map to see which ZIP code it's in.
ZIP codes in Olmsted County
| ZIP code | City | Population | Median income | Typical home value |
|---|---|---|---|---|
| 55901 | Rochester | 58,495 | $94,607 | $325,400 |
| 55902 | Rochester | 26,464 | $120,611 | $469,400 |
| 55903 | Rochester | 0 | — | — |
| 55904 | Rochester | 29,639 | $77,016 | $290,500 |
| 55905 | Rochester | 0 | — | — |
| 55906 | Rochester | 20,437 | $93,685 | $396,000 |
| 55920 | Byron | 9,271 | $131,336 | $402,100 |
| 55929 | Dover | 1,383 | $118,977 | $358,000 |
| 55932 | Elgin | 1,999 | $100,078 | $361,000 |
| 55934 | Eyota | 3,466 | $84,952 | $361,200 |
| 55960 | Oronoco | 3,375 | $130,227 | $548,400 |
| 55976 | Stewartville | 8,509 | $87,330 | $334,000 |
ZIP codes partly in Olmsted County
These ZIP codes are mostly in a neighboring county but cover part of Olmsted County.
| ZIP code | City | County | Population | Median income | Typical home value |
|---|---|---|---|---|---|
| 55923 | Chatfield | Fillmore County | 4,375 | $96,328 | $353,500 |
| 55940 | Hayfield | Dodge County | 2,791 | $83,885 | $325,000 |
| 55944 | Kasson | Dodge County | 8,161 | $95,180 | $335,600 |
| 55955 | Mantorville | Dodge County | 2,605 | $132,524 | $475,800 |
| 55956 | Mazeppa | Wabasha County | 2,199 | $98,558 | $382,100 |
| 55963 | Pine Island | Goodhue County | 5,244 | $112,287 | $380,500 |
| 55964 | Plainview | Wabasha County | 4,400 | $84,318 | $305,100 |
| 55972 | Saint Charles | Winona County | 5,434 | $98,878 | $349,300 |
| 55991 | Zumbro Falls | Wabasha County | 1,394 | $82,292 | $445,700 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities and towns in Olmsted County
Nearby counties
Frequently asked questions
How many ZIP codes are in Olmsted County, Minnesota?
12 ZIP codes are mainly in Olmsted County, and 9 more ZIP codes from neighboring areas reach partly into it.
What cities are in Olmsted County?
ZIP codes in Olmsted County use the city names Byron, Dover, Elgin, Eyota, Oronoco, Rochester and Stewartville.
What metro area is Olmsted County in?
Olmsted County is part of the Rochester, MN metropolitan statistical area.