48840 ZIP Code, Haslett, MI
48840 is a ZIP code in Haslett, Michigan — mostly in Ingham County (61% of its land), with smaller parts in Shiawassee and Clinton counties. It covers 19 square miles of land. The closest ZIP codes are 48823, 48864 and 48824. 12,386 people live here in 6,155 households. With about 659 people per square mile it is lightly settled, and owners and renters are mixed (61% own). Median household income is $73,408, close to the Michigan median of $72,875.
Quick facts
- Mailing city: Haslett, MI
- County: Ingham County
- Land area: 19 sq mi
- Population: 12,386
- Median household income: $73,408
- Carrier routes: 8 (6,373 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 12,386 |
| Households | 6,155 |
| Median household income | $73,408 |
| Income per person | $49,157 |
| Median age | 42.4 |
| Homeowners | 61.2% |
| Median home value | $280,900 |
| Median rent | $1,071 |
| Bachelor's degree or higher | 48.7% |
| Average commute (minutes) | 22.6 |
| Households with kids under 18 | 17.9% |
| Moved in the past year | 14.7% |
| Below the poverty line | 6.4% |
| Broadband internet | 91.2% |
| Speak a non-English language at home | 8.8% |
Household income
| % of households | Value |
|---|---|
| <$10K | 2.6% |
| $10–15K | 5.2% |
| $15–25K | 5.7% |
| $25–35K | 8.6% |
| $35–50K | 12.7% |
| $50–75K | 16.8% |
| $75–100K | 9.2% |
| $100–150K | 18.9% |
| $150–200K | 11.3% |
| $200K+ | 9.1% |
Age
| % of all residents | Value |
|---|---|
| <10 | 8.4% |
| 10–19 | 8.7% |
| 20–24 | 6.3% |
| 25–34 | 16.0% |
| 35–44 | 14.5% |
| 45–54 | 10.4% |
| 55–64 | 14.5% |
| 65–74 | 12.8% |
| 75+ | 8.5% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 36.5% |
| Owned outright | 24.5% |
| Rented | 37.5% |
| Vacant | 1.5% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 59.7% |
| Townhome | 5.8% |
| 2–4 units | 5.9% |
| 5–19 units | 21.1% |
| 20+ units | 7.0% |
| Mobile / other | 0.4% |
Businesses in 48840
183 business establishments with 1,362 employees (ZIP Codes Business Patterns 2023).
- Health Care and Social Assistance: 30
- Professional, Scientific, and Technical Services: 26
- Other Services (except Public Administration): 24
- Construction: 15
- Accommodation and Food Services: 15
- Administrative and Support and Waste Management and Remediation Services: 14
- Real Estate and Rental and Leasing: 12
- Retail Trade: 11
EDDM carrier routes
48840 has 8 USPS carrier routes with 6,373 residential and 141 business mailboxes. Open the EDDM route map.
Carrier routes in 48840
48840 has 8 USPS carrier routes (8 rural (R)) with 6,373 residential and 141 business mailboxes. Routes range from 589 homes (R003) to 987 homes (R005); the median route has 826 homes. The Census counted 6,155 households in 48840 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 0 |
| 500–749 | 3 |
| 750–999 | 5 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 48840 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R010 — USPS business mailboxes 60, 877 homes
- Route R005 — USPS business mailboxes 35, 987 homes
- Route R003 — USPS business mailboxes 21, 589 homes
- Route R004 — USPS business mailboxes 12, 782 homes
- Route R008 — USPS business mailboxes 7, 904 homes
Select these 5 routes on the route map
Every carrier route in 48840
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| R001 | Rural | 666 | 1 | $80,455 | — | — | — |
| R002 | Rural | 869 | 4 | $105,256 | — | — | — |
| R003 | Rural | 589 | 21 | $115,570 | — | — | — |
| R004 | Rural | 782 | 12 | $140,823 | — | — | — |
| R005 | Rural | 987 | 35 | $78,395 | — | — | — |
| R007 | Rural | 699 | 1 | $80,455 | — | — | — |
| R008 | Rural | 904 | 7 | $58,614 | — | — | — |
| R010 | Rural | 877 | 60 | $54,174 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 48840 on the EDDM route map.
How route demographics are estimated
Mailbox counts come from USPS; demographics are estimates
The number of homes and businesses on each carrier route is the current USPS EDDM count. The Census Bureau does not publish figures for carrier routes, so income, homeownership, ages, families, movers and housing age on a route are EDDM2GO estimates built from Census block groups (neighborhood areas of roughly 600 to 3,000 people).
How a route gets its figures: the block-group length-share method
We trace each route's streets every 25 meters and record which block group each stretch falls in. The route's homes are spread along its streets in proportion to length, so a route with 60% of its street length in one block group is assumed to have 60% of its homes there. Each block group then contributes its Census counts in proportion to the share of its housing units that sit on the route (capped at the whole block group). Medians are recalculated from the combined income, home-value and age brackets, the way the Census Bureau computes them, not averaged.
Margins of error
Census survey figures carry a margin of error at 90% confidence; we carry it through the calculation and show it as ±. Our margins treat the route-to-block-group split as exact, so the real uncertainty is larger. Routes with fewer than 100 estimated households, large margins, or streets we could not place are flagged.
Different years
USPS mailbox counts are current. Census figures are 5-year averages for 2020–2024, so a new subdivision may have more homes on the route today than the Census counted. Use the route figures to compare routes with each other, not as an exact head count.
Why some routes show identical figures
Two routes that run through the same block group get the same percentages and medians, because the Census publishes one set of figures for the whole block group. Their mailbox counts still differ, and those are exact.
Route and mailbox counts: USPS EDDM route data. Route demographics: EDDM2GO estimates from U.S. Census Bureau American Community Survey 5-year block-group data (2020–2024) and 2024 cartographic block-group boundaries. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Nearby ZIP codes
- 48823 — East Lansing city, MI (4.1 mi)
- 48864 — Okemos CDP, MI (4.1 mi)
- 48824 — East Lansing city, MI (5.6 mi)
- 48808 — Bath CDP, MI (5.8 mi)
- 48825 — East Lansing city, MI (6 mi)
- 48895 — Williamston city, MI (7.2 mi)
- 48912 — Lansing city, MI (7.5 mi)
- 48848 — Laingsburg city, MI (8.2 mi)
Areas that include 48840
- Haslett, MI ZIP codes — 2 ZIP codes
- Clinton County ZIP codes — 16 ZIP codes
- Ingham County ZIP codes — 22 ZIP codes
- Shiawassee County ZIP codes — 15 ZIP codes
- Michigan ZIP code data
Where it ranks
- No. 4 of 20: highest median home value in Ingham County
- No. 6 of 22: highest median age in Ingham County
Mail every home in 48840
Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.
EDDM guides
ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 48840, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 48840 in?
- 48840 is a Haslett, MI mailing address. By land area, 51% lies inside Haslett; the rest is outside any Census-defined city or community.
- What county is 48840 in?
- 48840 is mostly in Ingham County (61% of its land), with smaller parts in Shiawassee and Clinton counties.
- What is the population of 48840?
- About 12,386 people (±950), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 12,665.
- What is the median household income in 48840?
- $73,408 (±$8,335), compared with $72,875 for Michigan as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 48840?
- 8 USPS carrier routes with 6,373 residential and 141 business mailboxes (6,514 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 48840?
- The closest, measured center to center: 48823 (4.1 mi, East Lansing), 48864 (4.1 mi, Okemos), 48824 (5.6 mi, East Lansing), 48808 (5.8 mi, Bath), 48825 (6 mi, East Lansing) and 48895 (7.2 mi, Williamston).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.