46403 ZIP Code, Gary, IN
46403 is a ZIP code in Gary, Indiana — mostly in Lake County (90% of its land), with smaller parts in Porter County. It covers 9.2 square miles of land. The closest ZIP codes are 46405, 46402 and 46368. 10,929 people live here in 4,950 households. At about 1,183 people per square mile it has suburban density, and owners and renters are mixed (49% own). Median household income is $45,991, well below the Indiana median of $71,957.
Quick facts
- Mailing city: Gary, IN
- County: Lake County
- Land area: 9.2 sq mi
- Population: 10,929
- Median household income: $45,991
- Carrier routes: 8 (5,631 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 10,929 |
| Households | 4,950 |
| Median household income | $45,991 |
| Income per person | $32,932 |
| Median age | 40.4 |
| Homeowners | 48.8% |
| Median home value | $177,600 |
| Median rent | $966 |
| Bachelor's degree or higher | 26.2% |
| Average commute (minutes) | 30.4 |
| Households with kids under 18 | 23.3% |
| Moved in the past year | 9.6% |
| Below the poverty line | 24.3% |
| Broadband internet | 84.2% |
| Speak a non-English language at home | 4.8% |
Household income
| % of households | Value |
|---|---|
| <$10K | 8.7% |
| $10–15K | 6.4% |
| $15–25K | 12.3% |
| $25–35K | 8.3% |
| $35–50K | 16.6% |
| $50–75K | 13.7% |
| $75–100K | 11.5% |
| $100–150K | 10.4% |
| $150–200K | 6.8% |
| $200K+ | 5.2% |
Age
| % of all residents | Value |
|---|---|
| <10 | 13.8% |
| 10–19 | 11.5% |
| 20–24 | 6.0% |
| 25–34 | 11.1% |
| 35–44 | 12.9% |
| 45–54 | 11.7% |
| 55–64 | 11.5% |
| 65–74 | 13.0% |
| 75+ | 8.4% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 21.6% |
| Owned outright | 17.4% |
| Rented | 39.1% |
| Vacant | 21.8% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 67.5% |
| Townhome | 2.5% |
| 2–4 units | 4.4% |
| 5–19 units | 12.7% |
| 20+ units | 11.8% |
| Mobile / other | 1.0% |
Businesses in 46403
157 business establishments with 2,145 employees (ZIP Codes Business Patterns 2023).
- Accommodation and Food Services: 23
- Retail Trade: 19
- Transportation and Warehousing: 17
- Health Care and Social Assistance: 14
- Other Services (except Public Administration): 14
- Professional, Scientific, and Technical Services: 12
- Real Estate and Rental and Leasing: 10
- Wholesale Trade: 8
EDDM carrier routes
46403 has 8 USPS carrier routes with 5,631 residential and 197 business mailboxes. Open the EDDM route map.
Carrier routes in 46403
46403 has 8 USPS carrier routes (8 city (C)) with 5,631 residential and 197 business mailboxes. Routes range from 525 homes (C014) to 1,012 homes (C013); the median route has 621 homes. The Census counted 4,950 households in 46403 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 0 |
| 500–749 | 5 |
| 750–999 | 2 |
| 1,000–1,499 | 1 |
| 1,500+ | 0 |
Best routes in 46403 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C013 — USPS business mailboxes 92, 1,012 homes
- Route C009 — USPS business mailboxes 42, 920 homes
- Route C002 — USPS business mailboxes 26, 626 homes
- Route C001 — USPS business mailboxes 17, 528 homes
- Route C008 — USPS business mailboxes 9, 615 homes
Select these 5 routes on the route map
Every carrier route in 46403
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 528 | 17 | $50,000 | — | — | — |
| C002 | City | 626 | 26 | $34,370 | — | — | — |
| C007 | City | 535 | 5 | $77,495 | — | — | — |
| C008 | City | 615 | 9 | $42,568 | — | — | — |
| C009 | City | 920 | 42 | $38,785 | — | — | — |
| C011 | City | 870 | 3 | $55,289 | — | — | — |
| C013 | City | 1,012 | 92 | $19,796 | — | — | — |
| C014 | City | 525 | 3 | $72,088 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 46403 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
- 46405 — Lake Station city, IN (2.5 mi)
- 46402 — Gary city, IN (4.1 mi)
- 46368 — Portage city, IN (4.3 mi)
- 46407 — Gary city, IN (4.3 mi)
- 46409 — Gary city, IN (5.5 mi)
- 46404 — Gary city, IN (6.3 mi)
- 46342 — Hobart city, IN (6.4 mi)
- 46408 — Gary city, IN (7.2 mi)
Areas that include 46403
- Gary, IN ZIP codes — 8 ZIP codes
- Portage, IN ZIP codes — 2 ZIP codes
- Lake County ZIP codes — 28 ZIP codes
- Porter County ZIP codes — 13 ZIP codes
- Indiana ZIP code data
Where it ranks
- No. 3 of 8: highest median household income in Gary, IN
- No. 1 of 8: highest median home value in Gary, IN
- No. 4 of 8: highest share of owner-occupied homes in Gary, IN
- No. 1 of 8: highest median age in Gary, IN
Mail every home in 46403
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) 46403, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 46403 in?
- 46403 is a Gary, IN mailing address. By land area, 90% lies inside Gary and 10% lies inside Portage.
- What county is 46403 in?
- 46403 is mostly in Lake County (90% of its land), with smaller parts in Porter County.
- What is the population of 46403?
- About 10,929 people (±973), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 11,649.
- What is the median household income in 46403?
- $45,991 (±$8,111), 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 46403?
- 8 USPS carrier routes with 5,631 residential and 197 business mailboxes (5,828 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 46403?
- The closest, measured center to center: 46405 (2.5 mi, Lake Station), 46402 (4.1 mi, Gary), 46368 (4.3 mi, Portage), 46407 (4.3 mi, Gary), 46409 (5.5 mi, Gary) and 46404 (6.3 mi, Gary).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.