45039 ZIP Code, Maineville, OH
45039 is a ZIP code in Maineville, Ohio in Warren County. It covers 16 square miles of land. The closest ZIP codes are 45034, 45065 and 45040. 28,335 people live here in 10,945 households, more than in 9 of every 10 Ohio ZIP codes. At about 1,820 people per square mile it has suburban density, and most homes are owner-occupied (84%). Median household income is $108,794, well above the Ohio median of $71,389.
Quick facts
- Mailing city: Maineville, OH
- County: Warren County
- Land area: 16 sq mi
- Population: 28,335
- Median household income: $108,794
- Carrier routes: 16 (11,748 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 28,335 |
| Households | 10,945 |
| Median household income | $108,794 |
| Income per person | $50,383 |
| Median age | 39.5 |
| Homeowners | 83.8% |
| Median home value | $327,200 |
| Median rent | $1,677 |
| Bachelor's degree or higher | 51.6% |
| Average commute (minutes) | 25.3 |
| Households with kids under 18 | 35.3% |
| Moved in the past year | 8.5% |
| Below the poverty line | 4.1% |
| Broadband internet | 95.0% |
| Speak a non-English language at home | 9.3% |
Household income
| % of households | Value |
|---|---|
| <$10K | 3.1% |
| $10–15K | 0.9% |
| $15–25K | 1.6% |
| $25–35K | 4.9% |
| $35–50K | 7.1% |
| $50–75K | 11.4% |
| $75–100K | 15.9% |
| $100–150K | 23.4% |
| $150–200K | 14.8% |
| $200K+ | 16.9% |
Age
| % of all residents | Value |
|---|---|
| <10 | 12.2% |
| 10–19 | 13.8% |
| 20–24 | 4.5% |
| 25–34 | 11.7% |
| 35–44 | 15.5% |
| 45–54 | 12.3% |
| 55–64 | 12.8% |
| 65–74 | 10.2% |
| 75+ | 7.0% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 58.8% |
| Owned outright | 21.9% |
| Rented | 15.3% |
| Vacant | 3.9% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 73.4% |
| Townhome | 12.5% |
| 2–4 units | 3.9% |
| 5–19 units | 7.2% |
| 20+ units | 2.8% |
| Mobile / other | 0.0% |
Businesses in 45039
360 business establishments with 3,368 employees (ZIP Codes Business Patterns 2023).
- Professional, Scientific, and Technical Services: 44
- Health Care and Social Assistance: 42
- Other Services (except Public Administration): 41
- Construction: 40
- Retail Trade: 36
- Accommodation and Food Services: 30
- Real Estate and Rental and Leasing: 24
- Administrative and Support and Waste Management and Remediation Services: 24
EDDM carrier routes
45039 has 16 USPS carrier routes with 11,748 residential and 282 business mailboxes. Open the EDDM route map.
Carrier routes in 45039
45039 has 16 USPS carrier routes (16 rural (R)) with 11,748 residential and 282 business mailboxes. Routes range from 562 homes (R006) to 912 homes (R008); the median route has 737 homes. The Census counted 10,945 households in 45039 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 0 |
| 500–749 | 9 |
| 750–999 | 7 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 45039 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R006 — USPS business mailboxes 81, 562 homes
- Route R005 — USPS business mailboxes 74, 717 homes
- Route R008 — USPS business mailboxes 36, 912 homes
- Route R016 — USPS business mailboxes 24, 686 homes
- Route R013 — USPS business mailboxes 22, 761 homes
Select these 5 routes on the route map
Every carrier route in 45039
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| R001 | Rural | 727 | 1 | $103,361 | — | — | — |
| R002 | Rural | 774 | 5 | $120,498 | — | — | — |
| R003 | Rural | 667 | 15 | $123,326 | — | — | — |
| R005 | Rural | 717 | 74 | $112,437 | — | — | — |
| R006 | Rural | 562 | 81 | $151,328 | — | — | — |
| R007 | Rural | 687 | 3 | $88,381 | — | — | — |
| R008 | Rural | 912 | 36 | $88,381 | — | — | — |
| R009 | Rural | 708 | 1 | $152,505 | — | — | — |
| R010 | Rural | 785 | 1 | $108,792 | — | — | — |
| R011 | Rural | 767 | 0 | $108,792 | — | — | — |
| R012 | Rural | 718 | 0 | $120,995 | — | — | — |
| R013 | Rural | 761 | 22 | $151,328 | — | — | — |
| R014 | Rural | 759 | 9 | $129,968 | — | — | — |
| R015 | Rural | 747 | 4 | $120,995 | — | — | — |
| R016 | Rural | 686 | 24 | $92,973 | — | — | — |
| R018 | Rural | 771 | 6 | $120,995 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 45039 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
- 45034 — Kings Mills CDP, OH (2.1 mi)
- 45065 — South Lebanon village, OH (3.2 mi)
- 45040 — Mason city, OH (4.4 mi)
- 45140 — Loveland city, OH (5.1 mi)
- 45249 — Montgomery city, OH (6 mi)
- 45152 — Morrow village, OH (6.4 mi)
- 45036 — Lebanon city, OH (8.1 mi)
- 45242 — Blue Ash city, OH (8.5 mi)
Areas that include 45039
- Landen, OH ZIP codes — 2 ZIP codes
- South Lebanon, OH ZIP codes — 3 ZIP codes
- Maineville, OH ZIP codes — 3 ZIP codes
- Warren County ZIP codes — 18 ZIP codes
- Ohio ZIP code data
Mail every home in 45039
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) 45039, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 45039 in?
- 45039 is a Maineville, OH mailing address. By land area, 11% lies inside Landen, 5% lies inside Maineville, 3% lies inside South Lebanon and 2% lies inside Mason; the rest is outside any Census-defined city or community.
- What county is 45039 in?
- 45039 is in Warren County.
- What is the population of 45039?
- About 28,335 people (±1,613), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 27,529.
- What is the median household income in 45039?
- $108,794 (±$8,194), compared with $71,389 for Ohio as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 45039?
- 16 USPS carrier routes with 11,748 residential and 282 business mailboxes (12,030 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 45039?
- The closest, measured center to center: 45034 (2.1 mi, Kings Mills), 45065 (3.2 mi, South Lebanon), 45040 (4.4 mi, Mason), 45140 (5.1 mi, Loveland), 45249 (6 mi, Montgomery) and 45152 (6.4 mi, Morrow).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.