Plain

County ZIP codes · Michigan · FIPS 26085

Lake County, MI ZIP Codes

Lake County, Michigan has 11 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 6 of the residential ones lie mainly in Lake County and 5 mainly in a neighboring county; 7 cross the county line. Median household income ranges from $42,566 in 49309 (Bitely) to $65,556 in 49655 (Leroy) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Lake County?

49304 · Baldwin: $46k49309 · Bitely: $43k49402 · Branch: $51k49601 · Cadillac: $64k49623 · Chase: $60k49642 · Idlewild: $27k49644 · Irons: $54k49655 · Leroy: $66k49656 · Luther: $57k49677 · Reed City: $59k49688 · Tustin: $64k496014967749402493044930949656496444968849655496234964249304 · Baldwin: $46k49309 · Bitely: $43k49402 · Branch: $51k49601 · Cadillac: $64k49623 · Chase: $60k49642 · Idlewild: $27k49644 · Irons: $54k49655 · Leroy: $66k49656 · Luther: $57k49677 · Reed City: $59k49688 · Tustin: $64k496014967749402493044930949656496444968849655496234964249304 · Baldwin: $46k49309 · Bitely: $43k49402 · Branch: $51k49601 · Cadillac: $64k49623 · Chase: $60k49642 · Idlewild: $27k49644 · Irons: $54k49655 · Leroy: $66k49656 · Luther: $57k49677 · Reed City: $59k49688 · Tustin: $64k49601496774940249304493094965649644496884965549623
The residential ZIP codes of Lake County (whole outlines, including the parts in neighboring counties), shaded by median household income in national fifths (ACS 2020-2024). <$54.1k$98.1k+no figure

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

How different are its ZIP codes?

The middle half of its ranked ZIP codes (1,000+ people living in households) report median household incomes between $51,324 and $63,498.

They carry 11 postal town names.

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

All 11 residential ZIP codes in Lake County

6 ZIP codes lie mainly in Lake County; 5 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Lake County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
49304 Baldwin 5,408 48 $46k $116k 100%
49656 Luther 1,908 16 $57k $136k 100%
49644 Irons 1,715 16 $54k $175k 93%
49402 Branch 1,411 10 $51k $170k 52%
49623 Chase 986 14 $60k $133k 100%
49642 Idlewild 985 65 $27k $116k 100%

Partly in Lake County

Residential ZIP codes mainly in another county that reach at least 1% into Lake County, by their share here
In this county
49677 Reed City 7,028 55 $59k $142k 30%
49688 Tustin 2,508 27 $64k $189k 10%
49601 Cadillac 22,092 100 $64k $174k 9%
49309 Bitely 1,859 15 $43k $152k 5%
49655 Leroy 3,383 39 $66k $180k 2%

Download the 11 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?

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

Share of each ZIP code's land in Lake County and in the neighboring counties
ZIPIn LakeElsewhere
496019%Wexford County 88%; Missaukee County 3%
4967730%Osceola County 58%; Newaygo County 12%
496552%Osceola County 98%
4968810%Osceola County 89%
493095%Newaygo County 95%
4964493%Mason County 4%; Manistee County 3%
4940252%Mason County 47%; Oceana County 1%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Lake County's ZIP codes use 3 prefixes: 493, 494 and 496.

Three-digit prefixes of Lake 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 Lake County's
PrefixSectional centerHereAll codes
493 Grand Rapids, MI (SCF 493) 2 49
494 Grand Rapids, MI (SCF 493) 1 57
496 Traverse City, MI (SCF 496) 8 70

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