County ZIP codes · Minnesota · FIPS 27169

Winona County, MN ZIP Codes

Winona County, Minnesota has 16 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026): 14 residential and 2 for PO boxes or a single organization. 8 of the residential ones lie mainly in Winona County and 6 mainly in a neighboring county; 9 cross the county line. Median household income ranges from $61,624 in 55987 (Winona) to $98,878 in 55972 (Saint Charles) (Census Bureau, ACS 2020-2024).

ACS2020-24
Census2020

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries; ACS 2020-2024 5-year estimates (B19013).

How different are its ZIP codes?

55987 · $62k 55972 · $99k

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $72,411 and $92,500.

They carry 14 postal town names.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B19013).

All 14 residential ZIP codes in Winona County

8 ZIP codes lie mainly in Winona County; 6 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Winona County, largest first; "In this county" is the share of the ZIP's land in the county
						In this county
55987	Winona	34,072	217	$62k	$222k	100%
55972	Saint Charles	5,434	62	$99k	$288k	74%
55952	Lewiston	2,585	39	$91k	$228k	100%
55959	Minnesota City	1,889	52	$68k	$232k	100%
55925	Dakota	1,336	43	$93k	$282k	100%
55910	Altura	1,171	13	$76k	$259k	88%
55969	Rollingstone	1,169	40	$94k	$292k	100%
55979	Utica	1,053	18	$85k	$280k	92%

Partly in Winona County

Residential ZIP codes mainly in another county that reach at least 1% into Winona County, by their share here
						In this county
55971	Rushford	3,018	36	$89k	$232k	38%
55947	La Crescent	7,403	101	$89k	$302k	37%
55943	Houston	3,221	19	$72k	$240k	20%
55964	Plainview	4,400	50	$84k	$253k	10%
55962	Peterson	756	12	$77k	$286k	4%
55923	Chatfield	4,375	35	$96k	$293k	3%

Download the 16 ZIP codes as CSV

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates; county shares by land area (Census 2020 ZCTA-county relationship file).

Which ZIP codes cross the county line?

9 ZIP codes of Winona County extend into another county. A ZIP code follows mail routes, not county borders.

Share of each ZIP code's land in Winona County and in the neighboring counties
ZIP	In Winona	Elsewhere
55947	37%	Houston County 63%
55972	74%	Olmsted County 26%
55964	10%	Wabasha County 79%; Olmsted County 11%
55923	3%	Fillmore County 50%; Olmsted County 46%
55943	20%	Houston County 80%
55971	38%	Fillmore County 44%; Houston County 18%
55910	88%	Wabasha County 12%
55979	92%	Fillmore County 8%
55962	4%	Fillmore County 96%

Source: U.S. Census Bureau, 2020 ZCTA-county relationship file (shares of land area).

PO Box and single-organization ZIP codes

ZIP codes in Winona County without a residential area (GeoNames postal codes)
ZIP	Postal name
55942	Homer
55988	Stockton

Source: GeoNames postal codes (CC BY 4.0).

Which first three digits do Winona County's ZIP codes use?

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Every ZIP code of Winona County starts with 559.

Three-digit prefixes of Winona County's ZIP codes, the sectional center for each (USPS labeling list L005, effective October 1, 2026) and how many of the prefix's codes are Winona County's
Prefix	Sectional center	Here	All codes
559	St Paul, MN (SCF 550)	16	73

Source: U.S. Postal Service, labeling list L005 (3-digit ZIP Code prefix groups, SCF sortation), effective October 1, 2026.

Where are the ZIP codes of Winona County?