Residential delivery area · Michigan
ZIP Code 49229: Britton, MI
ZIP code 49229 uses the postal name Britton, Michigan and lies mostly in Lenawee County (88% of its land), reaching into Monroe County and Washtenaw County (Census 2020 ZIP-county file). About 3,500 people live there (Census Bureau, ACS 2020-2024). Median household income is $94,950 (Census Bureau, ACS 2020-2024). By Census place, 1% of its land lies in Britton; 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Britton · its only residential ZIP
- County
- Lenawee County (88%); Monroe County (11%); Washtenaw County (1%)
- Census places
- Britton
- Micro area
- Adrian, MI
- House districts
- MI-5 (99%), MI-6 (1%) 119th Congress, by share of land
- State
- Michigan
- Time zone
- Eastern
- Land area
- 56.0 sq mi · 63 people per sq mi
Where is ZIP code 49229?
49229 centers on 41.992°, -83.826° and covers 56.0 square miles of land plus 0.0 of water. It borders 7 ZIP codes: 49286, 49238, 48131, 48160, 48176, 49268, 49221.
The map draws ZIP code areas only. For the streets inside 49229, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).
How does 49229 compare with the rest of Lenawee County?
| Measure | 49229 | In Lenawee County | In MI |
|---|---|---|---|
| People (ACS 2020-2024) | 3,540 | 10th of 22 | 552nd of 992 |
| Median household income | $95k | 2nd of 17 | 118th of 774 |
| Median home value | $227k | 9th of 18 | 312th of 779 |
Its median household income is higher than in 77% of U.S. residential ZIP codes, and it is denser than 46% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 49229?
The 2020 Census counted 3,261 people in 49229; the ACS, which samples households over 2020-2024, estimates 3,540. Between the 2010 and 2020 censuses its population grew 0.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 3,540±399 (90% margin)
- 2020 Census count
- 3,261+0.5% since 2010 (3,245)
- Households
- 1,339
- Median age
- 44.4
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 49229?
Of the 3,540 people the ACS estimates in 49229, 20.3% are under 18 and 14.0% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (90.6%).
- Under 1820.3%
- 18 to 6465.7%
- 65 and older14.0%
- White, not Hispanic90.6%
- Other or two or more5.0%
- Hispanic or Latino4.5%
- Black, not Hispanic0.0%
- Asian, not Hispanic0.0%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 49229 earn?
Median household income is $94,950 (ACS 2020-2024), the 2nd highest of the 17 ranked ZIP codes in Lenawee County. It is not measurably different from 2015-2019 ($95,092 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $94,950±$11,725
- Income per person
- $39,473
- Below the poverty line
- 7.1%
- Unemployed (of the labor force)
- 9.6%
- Adults 25+ with a bachelor's degree
- 18.3%
- Adjusted gross income per tax return, 2022
- $76,1901,550 returns; wages 71% of AGI (IRS)
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 49229?
FHFA's house price index for 49229, built from repeat sales and appraisals of the same homes, rose 69% from 2015 to 2025 and rose 40% from 2020 to 2025, and moved −0.7% in 2025.
- Median home value (owners' estimate)
- $226,600
- Median gross rent
- $980
- Homes owned by their occupants
- 91.9%
- Housing units
- 1,485
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 49229?
33 business establishments had a location in this ZIP code in 2023, 5 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction8
- Other services (except public administration)7
- Retail trade5
- Administrative and support and waste management and remediation services4
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 49229?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 49286 | Tecumseh | 14,128 | $72k | 5.5 mi |
| 49238 | Deerfield | 1,914 | $75k | 6.6 mi |
| 48131 | Dundee | 8,637 | $86k | 8.1 mi |
| 48160 | Milan | 13,972 | $104k | 9.8 mi |
| 48176 | Saline | 23,451 | $114k | 10.0 mi |
| 49268 | Palmyra | 1,108 | $81k | 10.0 mi |
| 49221 | Adrian | 41,087 | $66k | 13.7 mi |
| 49236 | Clinton | 5,026 | $80k | 8.3 mi (near) |
| 49270 | Petersburg | 5,567 | $95k | 11.1 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.