48504 ZIP Code, Flint, MI
48504 is a ZIP code in Flint, Michigan in Genesee County. It covers 15 square miles of land. The closest ZIP codes are 48505, 48502 and 48532. 24,218 people live here in 10,331 households. At about 1,645 people per square mile it has suburban density, and owners and renters are mixed (62% own). Median household income is $38,719, well below the Michigan median of $72,875.
Quick facts
- Mailing city: Flint, MI
- County: Genesee County
- Land area: 15 sq mi
- Population: 24,218
- Median household income: $38,719
- Carrier routes: 22 (10,094 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 24,218 |
| Households | 10,331 |
| Median household income | $38,719 |
| Income per person | $21,658 |
| Median age | 34.8 |
| Homeowners | 61.9% |
| Median home value | $53,500 |
| Median rent | $920 |
| Bachelor's degree or higher | 12.6% |
| Average commute (minutes) | 20.8 |
| Households with kids under 18 | 31.5% |
| Moved in the past year | 13.3% |
| Below the poverty line | 30.9% |
| Broadband internet | 85.1% |
| Speak a non-English language at home | 4.0% |
Household income
| % of households | Value |
|---|---|
| <$10K | 12.7% |
| $10–15K | 8.0% |
| $15–25K | 12.7% |
| $25–35K | 11.8% |
| $35–50K | 17.4% |
| $50–75K | 18.0% |
| $75–100K | 7.7% |
| $100–150K | 9.3% |
| $150–200K | 1.7% |
| $200K+ | 0.9% |
Age
| % of all residents | Value |
|---|---|
| <10 | 15.1% |
| 10–19 | 13.8% |
| 20–24 | 6.7% |
| 25–34 | 14.7% |
| 35–44 | 10.1% |
| 45–54 | 10.9% |
| 55–64 | 13.9% |
| 65–74 | 8.7% |
| 75+ | 6.1% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 18.8% |
| Owned outright | 31.9% |
| Rented | 30.9% |
| Vacant | 18.4% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 81.7% |
| Townhome | 2.7% |
| 2–4 units | 1.4% |
| 5–19 units | 6.5% |
| 20+ units | 2.7% |
| Mobile / other | 5.0% |
Businesses in 48504
309 business establishments with 4,717 employees (ZIP Codes Business Patterns 2023).
- Retail Trade: 76
- Health Care and Social Assistance: 59
- Accommodation and Food Services: 39
- Other Services (except Public Administration): 37
- Construction: 17
- Professional, Scientific, and Technical Services: 14
- Wholesale Trade: 12
- Finance and Insurance: 11
EDDM carrier routes
48504 has 22 USPS carrier routes with 10,094 residential and 585 business mailboxes. Open the EDDM route map.
Carrier routes in 48504
48504 has 22 USPS carrier routes (20 city (C), 2 rural (R)) with 10,094 residential and 585 business mailboxes. Routes range from 271 homes (C073) to 781 homes (R008); the median route has 458 homes. The Census counted 10,331 households in 48504 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 16 |
| 500–749 | 5 |
| 750–999 | 1 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 48504 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C091 — USPS business mailboxes 176, 323 homes
- Route R008 — USPS business mailboxes 98, 781 homes
- Route C096 — USPS business mailboxes 71, 447 homes
- Route R004 — USPS business mailboxes 63, 697 homes
- Route C061 — USPS business mailboxes 39, 620 homes
Select these 5 routes on the route map
Every carrier route in 48504
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C033 | City | 458 | 6 | $26,814 | — | — | — |
| C035 | City | 408 | 2 | $56,326 | — | — | — |
| C037 | City | 505 | 25 | $34,446 | — | — | — |
| C039 | City | 521 | 1 | $43,727 | — | — | — |
| C050 | City | 321 | 4 | $40,376 | — | — | — |
| C061 | City | 620 | 39 | $37,212 | — | — | — |
| C064 | City | 347 | 22 | $76,921 | — | — | — |
| C065 | City | 470 | 7 | $57,329 | — | — | — |
| C066 | City | 489 | 0 | $57,329 | — | — | — |
| C069 | City | 460 | 17 | $32,384 | — | — | — |
| C071 | City | 457 | 8 | $76,921 | — | — | — |
| C073 | City | 271 | 8 | $16,340 | — | — | — |
| C077 | City | 343 | 5 | $29,514 | — | — | — |
| C078 | City | 475 | 1 | $37,212 | — | — | — |
| C079 | City | 313 | 2 | $70,033 | — | — | — |
| C087 | City | 682 | 23 | $17,612 | — | — | — |
| C088 | City | 279 | 5 | $38,257 | — | — | — |
| C091 | City | 323 | 176 | $38,784 | — | — | — |
| C096 | City | 447 | 71 | $54,412 | — | — | — |
| C099 | City | 427 | 2 | $56,326 | — | — | — |
| R004 | Rural | 697 | 63 | $59,662 | — | — | — |
| R008 | Rural | 781 | 98 | $54,995 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 48504 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
- 48505 — Flint city, MI (2.8 mi)
- 48502 — Flint city, MI (3.9 mi)
- 48532 — Flint city, MI (4 mi)
- 48503 — Flint city, MI (4.2 mi)
- 48458 — Beecher CDP, MI (5.8 mi)
- 48506 — Flint city, MI (6.1 mi)
- 48433 — Flushing city, MI (6.2 mi)
- 48507 — Flint city, MI (6.2 mi)
Areas that include 48504
- Flint, MI ZIP codes — 7 ZIP codes
- Genesee County ZIP codes — 27 ZIP codes
- Michigan ZIP code data
Where it ranks
- No. 4 of 25: highest share of households with children in Genesee County
- No. 5 of 25: highest share of residents who moved in during the past year in Genesee County
- No. 2 of 25: lowest median age in Genesee County
- No. 5 of 6: highest median home value in Flint, MI
- No. 2 of 7: highest share of owner-occupied homes in Flint, MI
- No. 1 of 7: highest share of households with children in Flint, MI
- No. 3 of 7: highest share of residents who moved in during the past year in Flint, MI
- No. 2 of 7: lowest median age in Flint, MI
- No. 4 of 7: fastest population growth in Flint, MI
Mail every home in 48504
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) 48504, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 48504 in?
- 48504 is a Flint, MI mailing address. By land area, 29% lies inside Flint and 1% lies inside Beecher; the rest is outside any Census-defined city or community.
- What county is 48504 in?
- 48504 is in Genesee County.
- What is the population of 48504?
- About 24,218 people (±1,461), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 24,266.
- What is the median household income in 48504?
- $38,719 (±$3,097), 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 48504?
- 22 USPS carrier routes with 10,094 residential and 585 business mailboxes (10,665 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 48504?
- The closest, measured center to center: 48505 (2.8 mi, Flint), 48502 (3.9 mi, Flint), 48532 (4 mi, Flint), 48503 (4.2 mi, Flint), 48458 (5.8 mi, Beecher) and 48506 (6.1 mi, Flint).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.