66204 ZIP Code, Overland Park, KS
66204 is a ZIP code in Overland Park, Kansas in Johnson County. It covers 5.0 square miles of land. The closest ZIP codes are 66202, 66212 and 66203. 17,948 people live here in 8,711 households, more than in 9 of every 10 Kansas ZIP codes. At about 3,624 people per square mile it has suburban density, and owners and renters are mixed (49% own). Median household income is $75,889, close to the Kansas median of $74,275.
Quick facts
- Mailing city: Overland Park, KS
- County: Johnson County
- Land area: 5.0 sq mi
- Population: 17,948
- Median household income: $75,889
- Carrier routes: 20 (9,632 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 17,948 |
| Households | 8,711 |
| Median household income | $75,889 |
| Income per person | $44,523 |
| Median age | 36.1 |
| Homeowners | 48.9% |
| Median home value | $269,400 |
| Median rent | $1,366 |
| Bachelor's degree or higher | 47.3% |
| Average commute (minutes) | 18.8 |
| Households with kids under 18 | 18.4% |
| Moved in the past year | 17.2% |
| Below the poverty line | 9.6% |
| Broadband internet | 93.3% |
| Speak a non-English language at home | 16.9% |
Household income
| % of households | Value |
|---|---|
| <$10K | 2.4% |
| $10–15K | 1.3% |
| $15–25K | 9.5% |
| $25–35K | 5.5% |
| $35–50K | 10.8% |
| $50–75K | 19.9% |
| $75–100K | 18.8% |
| $100–150K | 18.2% |
| $150–200K | 8.2% |
| $200K+ | 5.3% |
Age
| % of all residents | Value |
|---|---|
| <10 | 10.1% |
| 10–19 | 6.7% |
| 20–24 | 9.5% |
| 25–34 | 22.3% |
| 35–44 | 12.9% |
| 45–54 | 8.5% |
| 55–64 | 12.1% |
| 65–74 | 9.5% |
| 75+ | 8.5% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 30.2% |
| Owned outright | 15.8% |
| Rented | 47.7% |
| Vacant | 6.3% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 57.1% |
| Townhome | 5.2% |
| 2–4 units | 6.4% |
| 5–19 units | 18.9% |
| 20+ units | 12.1% |
| Mobile / other | 0.2% |
Businesses in 66204
596 business establishments with 11,110 employees (ZIP Codes Business Patterns 2023).
- Health Care and Social Assistance: 109
- Professional, Scientific, and Technical Services: 96
- Retail Trade: 80
- Other Services (except Public Administration): 56
- Construction: 46
- Accommodation and Food Services: 46
- Finance and Insurance: 33
- Real Estate and Rental and Leasing: 31
EDDM carrier routes
66204 has 20 USPS carrier routes with 9,632 residential and 704 business mailboxes. Open the EDDM route map.
Carrier routes in 66204
66204 has 20 USPS carrier routes (20 city (C)) with 9,632 residential and 704 business mailboxes. Routes range from 173 homes (C036) to 1,182 homes (C023); the median route has 451 homes. The Census counted 8,711 households in 66204 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 3 |
| 250–499 | 9 |
| 500–749 | 7 |
| 750–999 | 0 |
| 1,000–1,499 | 1 |
| 1,500+ | 0 |
Best routes in 66204 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C015 — USPS business mailboxes 137, 202 homes
- Route C013 — USPS business mailboxes 100, 189 homes
- Route C019 — USPS business mailboxes 89, 447 homes
- Route C012 — USPS business mailboxes 71, 643 homes
- Route C035 — USPS business mailboxes 69, 559 homes
Select these 5 routes on the route map
Every carrier route in 66204
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 392 | 0 | $119,516 | — | — | — |
| C002 | City | 602 | 36 | $64,703 | — | — | — |
| C003 | City | 457 | 2 | $90,640 | — | — | — |
| C006 | City | 409 | 1 | $97,836 | — | — | — |
| C007 | City | 455 | 1 | $82,791 | — | — | — |
| C010 | City | 630 | 3 | $75,236 | — | — | — |
| C012 | City | 643 | 71 | $57,919 | — | — | — |
| C013 | City | 189 | 100 | $67,726 | — | — | — |
| C014 | City | 393 | 0 | $67,726 | — | — | — |
| C015 | City | 202 | 137 | $64,703 | — | — | — |
| C017 | City | 597 | 33 | $82,791 | — | — | — |
| C018 | City | 295 | 23 | $84,646 | — | — | — |
| C019 | City | 447 | 89 | $30,916 | — | — | — |
| C020 | City | 628 | 24 | $60,819 | — | — | — |
| C021 | City | 361 | 3 | $84,646 | — | — | — |
| C023 | City | 1,182 | 47 | $67,726 | — | — | — |
| C033 | City | 659 | 59 | $79,023 | — | — | — |
| C034 | City | 359 | 6 | $90,640 | — | — | — |
| C035 | City | 559 | 69 | $71,574 | — | — | — |
| C036 | City | 173 | 0 | $85,481 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 66204 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
- 66202 — Mission city, KS (2.3 mi)
- 66212 — Overland Park city, KS (2.4 mi)
- 66203 — Shawnee city, KS (2.6 mi)
- 66208 — Prairie Village city, KS (2.7 mi)
- 66214 — Overland Park city, KS (2.7 mi)
- 66207 — Overland Park city, KS (3 mi)
- 66205 — Roeland Park city, KS (3.8 mi)
- 66216 — Shawnee city, KS (3.8 mi)
Areas that include 66204
- Overland Park, KS ZIP codes — 15 ZIP codes
- Merriam, KS ZIP codes — 3 ZIP codes
- Johnson County ZIP codes — 35 ZIP codes
- Kansas ZIP code data
Where it ranks
- No. 6 of 33: highest share of residents who moved in during the past year in Johnson County
- No. 6 of 33: lowest median age in Johnson County
- No. 5 of 14: highest share of residents who moved in during the past year in Overland Park, KS
- No. 3 of 14: lowest median age in Overland Park, KS
Mail every home in 66204
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) 66204, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 66204 in?
- 66204 is a Overland Park, KS mailing address. By land area, 90% lies inside Overland Park and 9% lies inside Merriam.
- What county is 66204 in?
- 66204 is in Johnson County.
- What is the population of 66204?
- About 17,948 people (±1,165), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 19,381.
- What is the median household income in 66204?
- $75,889 (±$5,263), compared with $74,275 for Kansas as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 66204?
- 20 USPS carrier routes with 9,632 residential and 704 business mailboxes (10,339 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 66204?
- The closest, measured center to center: 66202 (2.3 mi, Mission), 66212 (2.4 mi, Overland Park), 66203 (2.6 mi, Shawnee), 66208 (2.7 mi, Prairie Village), 66214 (2.7 mi, Overland Park) and 66207 (3 mi, Overland Park).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.