46788 ZIP Code, Spencerville, IN
46788 is a ZIP code in Spencerville, Indiana — mostly in DeKalb County (53% of its land), with smaller parts in Allen County. It covers 35 square miles of land. The closest ZIP codes are 46785, 46741 and 46743. 4,373 people live here in 1,123 households. With about 127 people per square mile it is lightly settled, and most homes are owner-occupied (90%). Median household income is $101,553, above the Indiana median of $71,957; 47% of households have children under 18.
Quick facts
- Mailing city: Spencerville, IN
- County: DeKalb County
- Land area: 35 sq mi
- Population: 4,373
- Median household income: $101,553
- Carrier routes: 2 (1,130 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 4,373 |
| Households | 1,123 |
| Median household income | $101,553 |
| Income per person | $34,657 |
| Median age | 24.7 |
| Homeowners | 89.8% |
| Median home value | $285,200 |
| Median rent | $1,799 |
| Bachelor's degree or higher | 25.2% |
| Average commute (minutes) | 25 |
| Households with kids under 18 | 46.5% |
| Moved in the past year | 8.9% |
| Below the poverty line | 5.2% |
| Broadband internet | 79.5% |
| Speak a non-English language at home | 20.7% |
Household income
| % of households | Value |
|---|---|
| <$10K | 1.2% |
| $10–15K | 0.0% |
| $15–25K | 10.2% |
| $25–35K | 1.8% |
| $35–50K | 5.5% |
| $50–75K | 14.1% |
| $75–100K | 15.4% |
| $100–150K | 24.0% |
| $150–200K | 9.3% |
| $200K+ | 18.5% |
Age
| % of all residents | Value |
|---|---|
| <10 | 30.8% |
| 10–19 | 16.1% |
| 20–24 | 3.4% |
| 25–34 | 15.4% |
| 35–44 | 10.3% |
| 45–54 | 10.2% |
| 55–64 | 6.1% |
| 65–74 | 6.2% |
| 75+ | 1.5% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 46.4% |
| Owned outright | 39.7% |
| Rented | 9.7% |
| Vacant | 4.2% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 95.6% |
| Townhome | 0.0% |
| 2–4 units | 0.0% |
| 5–19 units | 0.0% |
| 20+ units | 0.0% |
| Mobile / other | 4.4% |
Businesses in 46788
62 business establishments with 314 employees (ZIP Codes Business Patterns 2023).
- Construction: 29
- Manufacturing: 6
- Retail Trade: 6
- Professional, Scientific, and Technical Services: 5
- Other Services (except Public Administration): 4
- Transportation and Warehousing: 3
- Administrative and Support and Waste Management and Remediation Services: 3
EDDM carrier routes
46788 has 2 USPS carrier routes with 1,130 residential and 10 business mailboxes. Open the EDDM route map.
Carrier routes in 46788
46788 has 2 USPS carrier routes (2 rural (R)) with 1,130 residential and 10 business mailboxes. Routes range from 544 homes (R074) to 586 homes (R073); the median route has 565 homes. The Census counted 1,123 households in 46788 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 0 |
| 500–749 | 2 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 46788 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route R073 — USPS business mailboxes 6, 586 homes
- Route R074 — USPS business mailboxes 4, 544 homes
Select these 2 routes on the route map
Every carrier route in 46788
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| R073 | Rural | 586 | 6 | $108,547 | — | — | — |
| R074 | Rural | 544 | 4 | $108,547 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 46788 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
- 46785 — St. Joe town, IN (3.8 mi)
- 46741 — Harlan CDP, IN (4.5 mi)
- 46743 — Harlan CDP, IN (4.9 mi)
- 46765 — Leo-Cedarville town, IN (7 mi)
- 46706 — Auburn city, IN (8 mi)
- 43526 — Hicksville village, OH (9.6 mi)
- 46797 — Woodburn city, IN (10.3 mi)
- 46721 — Butler city, IN (10.6 mi)
Areas that include 46788
- Spencerville, IN ZIP codes — 1 ZIP code
- Allen County ZIP codes — 30 ZIP codes
- DeKalb County ZIP codes — 12 ZIP codes
- Indiana ZIP code data
Where it ranks
- No. 2 of 12: highest median household income in DeKalb County
- No. 2 of 12: highest median home value in DeKalb County
- No. 4 of 12: highest share of owner-occupied homes in DeKalb County
- No. 1 of 12: highest share of households with children in DeKalb County
- No. 1 of 12: lowest median age in DeKalb County
- No. 2 of 12: fastest population growth in DeKalb County
Mail every home in 46788
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) 46788, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 46788 in?
- 46788 is a Spencerville, IN mailing address. None of its land lies inside a Census-defined city or community.
- What county is 46788 in?
- 46788 is mostly in DeKalb County (53% of its land), with smaller parts in Allen County.
- What is the population of 46788?
- About 4,373 people (±841), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 3,396.
- What is the median household income in 46788?
- $101,553 (±$43,053), compared with $71,957 for Indiana as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 46788?
- 2 USPS carrier routes with 1,130 residential and 10 business mailboxes (1,139 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 46788?
- The closest, measured center to center: 46785 (3.8 mi, St. Joe), 46741 (4.5 mi, Harlan), 46743 (4.9 mi, Harlan), 46765 (7 mi, Leo-Cedarville), 46706 (8 mi, Auburn) and 43526 (9.6 mi, Hicksville).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.