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County ZIP codes · Michigan · FIPS 26007

Alpena County, MI ZIP Codes

Alpena County, Michigan has 8 ZIP codes (Census 2020 ZCTA-county file; GeoNames postal codes, October 2026), all residential. 4 of the residential ones lie mainly in Alpena County and 4 mainly in a neighboring county; 5 cross the county line. Median household income ranges from $47,432 in 49746 (Hillman) to $73,233 in 49747 (Hubbard Lake) (Census Bureau, ACS 2020-2024).

  • ACS2020-24
  • Census2020

Where are the ZIP codes of Alpena County?

48762 · Spruce: $73k49707 · Alpena: $51k49744 · Herron: $78k49746 · Hillman: $47k49747 · Hubbard Lake: $73k49753 · Lachine: $57k49766 · Ossineke: $61k49776 · Posen: $59k497074974649753497764974748762497664974448762 · Spruce: $73k49707 · Alpena: $51k49744 · Herron: $78k49746 · Hillman: $47k49747 · Hubbard Lake: $73k49753 · Lachine: $57k49766 · Ossineke: $61k49776 · Posen: $59k497074974649753497764974748762497664974448762 · Spruce: $73k49707 · Alpena: $51k49744 · Herron: $78k49746 · Hillman: $47k49747 · Hubbard Lake: $73k49753 · Lachine: $57k49766 · Ossineke: $61k49776 · Posen: $59k49707497464975349776497474876249766
The residential ZIP codes of Alpena 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 $51,396 and $59,000.

They carry 8 postal town names: Alpena, Hillman, Ossineke, Hubbard Lake, Posen, Lachine, Herron, Spruce.

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

All 8 residential ZIP codes in Alpena County

4 ZIP codes lie mainly in Alpena County; 4 more reach into it from a neighboring county and follow the first table.

Residential ZIP codes mainly in Alpena County, largest first; "In this county" is the share of the ZIP's land in the county
In this county
49707 Alpena 21,881 102 $51k $154k 98%
49766 Ossineke 2,565 56 $61k $162k 100%
49753 Lachine 1,706 11 $57k $153k 100%
49744 Herron 934 25 $78k $194k 100%

Partly in Alpena County

Residential ZIP codes mainly in another county that reach at least 1% into Alpena County, by their share here
In this county
49747 Hubbard Lake 2,177 21 $73k $180k 45%
49776 Posen 1,866 14 $59k $149k 25%
49746 Hillman 3,284 16 $47k $164k 16%
48762 Spruce 930 16 $73k $215k 12%

Download the 8 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?

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

Share of each ZIP code's land in Alpena County and in the neighboring counties
ZIPIn AlpenaElsewhere
4970798%Presque Isle County2%
4974616%Montmorency County84%
4974745%Alcona County55%
4977625%Presque Isle County75%
4876212%Alcona County88%

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

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

The first three digits of a ZIP code name the sectional center, the mail processing plant that sorts it. Alpena County's ZIP codes use 2 prefixes: 487 and 497.

Three-digit prefixes of Alpena 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 Alpena County's
PrefixSectional centerHereAll codes
487Metroplex, MI (SCF 480)154
497Traverse City, MI (SCF 496)776

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