Washtenaw County, MI ZIP Codes
22 ZIP codes cover all or part of Washtenaw County, Michigan. The Census Bureau counts 369,822 residents in the county, with a median household income of $89,180 and a median home value of $374,100. Median household income ranges from $14,093 in 48109 to $187,589 in 48168. Its largest communities include Ann Arbor, Ypsilanti, Saline, Whitmore Lake and Chelsea.
Washtenaw County (Census county figures)
| Measure | Census figure |
|---|---|
| Residents | 369,822 |
| Households | 150,550 |
| Median household income | $89,180 |
| Median home value | $374,100 |
| Median age | 35 |
| Median rent | $1,463 |
All 22 ZIP codes together
| Measure | Value |
|---|---|
| Residents (sum of ZIP codes) | 514,914 |
| Households (sum of ZIP codes) | 208,872 |
| Median household income, range across ZIP codes | $14,093 (48109) to $187,589 (48168) |
| Household-weighted average of ZIP medians (an approximation, not a true median) | $100,225 |
| Homeowners | 67.7% |
| Households with kids under 18 | 25.3% |
| Moved in the past year | 17.4% |
| Carrier routes in EDDM2GO's route library | 240 routes, 128,951 homes (13 of 22 ZIP codes) |
Top facts
- Highest median household income in Washtenaw County: 48168 ($187,589)
- Most residents: 48197 (66,525 people)
- Highest homeownership: 49240 (92.6% own their home)
- Most households with kids: 48168 (36.5% of households)
- Most new movers: 48109 (85.1% moved in last year)
- Youngest median age: 48109 (19.1 years)
- Highest median home value: 48168 ($582,600)
Every ZIP code in Washtenaw County
| ZIP | Mailing city | Residents | Households | Median income | Home value | Homeowners | With kids | New movers | Carrier routes | Mailboxes | Why listed |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 48197 | Ypsilanti | 66,525 | 27,559 | $73,737 | $294,500 | 53.9% | 25.4% | 18.5% | — | — | 100% of its land |
| 48103 | Ann Arbor | 55,054 | 24,258 | $116,194 | $471,700 | 66.5% | 24.6% | 17.6% | — | — | 100% of its land |
| 48104 | Ann Arbor | 43,979 | 17,526 | $64,231 | $491,200 | 36.9% | 11.4% | 46.2% | 36 | 21,169 | 100% of its land |
| 48170 | Plymouth | 40,076 | 17,308 | $114,278 | $417,600 | 79.6% | 25.5% | 9.1% | 41 | 20,287 | 45% of its land |
| 48198 | Ypsilanti | 39,244 | 16,471 | $63,326 | $189,100 | 57.5% | 27.7% | 14.5% | 30 | 18,383 | 100% of its land |
| 48178 | South Lyon | 37,789 | 13,953 | $131,558 | $410,500 | 91.2% | 32.2% | 9.2% | 26 | 16,043 | 34% of its land |
| 48105 | Ann Arbor | 37,048 | 15,689 | $94,774 | $503,100 | 50.1% | 21.2% | 26.3% | — | — | 100% of its land |
| 48108 | Ann Arbor | 27,666 | 12,347 | $89,355 | $406,700 | 55.4% | 24.0% | 19.6% | 23 | 13,906 | 100% of its land |
| 48168 | Northville | 25,038 | 9,058 | $187,589 | $582,600 | 90.3% | 36.5% | 8.0% | 19 | 9,704 | 45% of its land |
| 48167 | Northville | 24,713 | 10,593 | $124,630 | $452,800 | 74.1% | 27.5% | 10.8% | — | — | 24% of its land |
| 48176 | Saline | 23,451 | 8,910 | $114,206 | $408,300 | 83.8% | 29.7% | 7.1% | 16 | 9,992 | 100% of its land |
| 48130 | Dexter | 16,986 | 6,268 | $129,254 | $480,500 | 88.1% | 35.4% | 9.7% | 12 | 6,770 | 100% of its land |
| 48160 | Milan | 13,972 | 4,947 | $103,453 | $265,300 | 80.6% | 27.5% | 12.4% | 10 | 5,347 | 48% of its land |
| 48189 | Whitmore Lake | 13,893 | 5,833 | $87,145 | $313,400 | 79.3% | 24.1% | 8.8% | — | — | 70% of its land |
| 48118 | Chelsea | 13,246 | 5,733 | $88,278 | $357,200 | 80.2% | 25.5% | 10.6% | 11 | 6,411 | 100% of its land |
| 49240 | Grass Lake | 8,863 | 3,629 | $99,681 | $298,700 | 92.6% | 23.3% | 5.8% | 7 | 3,829 | 15% of its land |
| 48158 | Manchester | 7,770 | 3,149 | $94,784 | $312,200 | 90.1% | 22.2% | 7.0% | 6 | 3,093 | 99% of its land |
| 48109 | Ann Arbor | 5,939 | 156 | $14,093 | — | 0.0% | 0.0% | 85.1% | — | — | 100% of its land |
| 49236 | Clinton | 5,026 | 1,928 | $79,783 | $230,300 | 89.1% | 29.1% | 7.1% | 3 | 1,988 | 45% of its land |
| 48191 | Willis | 4,403 | 1,662 | $102,833 | $271,900 | 90.9% | 29.4% | 11.6% | — | — | 88% of its land |
| 48137 | Gregory | 4,157 | 1,857 | $78,973 | $306,800 | 88.2% | 13.9% | 3.8% | — | — | 25% of its land |
| 48190 | Washtenaw County | 76 | 38 | $76,875 | $218,800 | 100.0% | 0.0% | 7.9% | — | — | 100% of its land |
A ZIP code is listed for Washtenaw County when at least 10% of its land is in the county, when it holds at least 10% of the county's land, or when the county is its main county. Totals add up whole ZIP codes, including parts that cross the county line; the Census county figures above do not.
Cities and communities
- Ann Arbor — 122,036 residents · 5 ZIP codes
- Ypsilanti — 19,857 residents · 2 ZIP codes
- Saline — 9,006 residents · 1 ZIP code
- Whitmore Lake — 7,878 residents · 2 ZIP codes
- Chelsea — 5,426 residents · 1 ZIP code
- Dexter — 4,521 residents · 1 ZIP code
- Manchester — 2,522 residents · 1 ZIP code
- Barton Hills — 430 residents · 1 ZIP code
Rankings
- Richest ZIP codes in Washtenaw County — 21 ZIP codes ranked
- ZIP codes with the highest home values in Washtenaw County — 20 ZIP codes ranked
- ZIP codes with the highest homeownership in Washtenaw County — 21 ZIP codes ranked
- ZIP codes with the most families with kids in Washtenaw County — 21 ZIP codes ranked
- ZIP codes with the most new movers in Washtenaw County — 21 ZIP codes ranked
- Youngest ZIP codes in Washtenaw County — 21 ZIP codes ranked
- Oldest ZIP codes in Washtenaw County — 21 ZIP codes ranked
- Fastest-growing ZIP codes in Washtenaw County — 21 ZIP codes ranked
Price a mailing to Washtenaw County ZIP codes
EDDM guides
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Frequently asked questions
- What ZIP codes are in Washtenaw County, MI?
- 48197, 48103, 48104, 48170, 48198, 48178, 48105, 48108, 48168, 48167, 48176, 48130, 48160, 48189, 48118, 49240, 48158, 48109, 49236, 48191, 48137 and 48190. Some cross the county line; the table shows each ZIP's share of land in the county.
- What is the population of Washtenaw County?
- 369,822 residents in 150,550 households (ACS 5-year estimates, 2020–2024).
- What is the median household income in Washtenaw County?
- $89,180 for the county as a whole. Its ZIP codes range from $14,093 (48109) to $187,589 (48168).
- Which Washtenaw County ZIP code has the highest median household income?
- 48168, at $187,589, among ZIP codes with at least 1,000 residents. See the full ranking of Washtenaw County ZIP codes by income.
- How many carrier routes and mailboxes are in Washtenaw County?
- For the 13 of 22 ZIP codes in EDDM2GO's stored route library: 240 carrier routes reaching 128,951 residential and 7,963 business mailboxes. The route map loads the rest when you search them.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.