06811 ZIP Code, Danbury, CT
06811 is a ZIP code in Danbury, Connecticut in Fairfield County. It covers 21 square miles of land. The closest ZIP codes are 06810, 06812 and 06804. 31,228 people live here in 11,802 households, more than in 9 of every 10 Connecticut ZIP codes. At about 1,487 people per square mile it has suburban density, and most homes are owner-occupied (77%). Median household income is $104,640, close to the Connecticut median of $95,781; the median age is 45.1, older than most ZIP codes.
Quick facts
- Mailing city: Danbury, CT
- County: Fairfield County
- Land area: 21 sq mi
- Population: 31,228
- Median household income: $104,640
- Carrier routes: 27 (11,794 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 31,228 |
| Households | 11,802 |
| Median household income | $104,640 |
| Income per person | $55,555 |
| Median age | 45.1 |
| Homeowners | 77.3% |
| Median home value | $421,200 |
| Median rent | $1,767 |
| Bachelor's degree or higher | 41.3% |
| Average commute (minutes) | 29.5 |
| Households with kids under 18 | 25.2% |
| Moved in the past year | 9.7% |
| Below the poverty line | 6.7% |
| Broadband internet | 95.2% |
| Speak a non-English language at home | 31.0% |
Household income
| % of households | Value |
|---|---|
| <$10K | 3.8% |
| $10–15K | 0.6% |
| $15–25K | 4.0% |
| $25–35K | 4.0% |
| $35–50K | 9.6% |
| $50–75K | 12.9% |
| $75–100K | 12.1% |
| $100–150K | 19.5% |
| $150–200K | 12.1% |
| $200K+ | 21.4% |
Age
| % of all residents | Value |
|---|---|
| <10 | 6.6% |
| 10–19 | 11.7% |
| 20–24 | 8.7% |
| 25–34 | 12.3% |
| 35–44 | 10.7% |
| 45–54 | 13.1% |
| 55–64 | 15.4% |
| 65–74 | 12.3% |
| 75+ | 9.2% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 48.3% |
| Owned outright | 25.5% |
| Rented | 20.9% |
| Vacant | 5.3% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 63.7% |
| Townhome | 11.2% |
| 2–4 units | 5.5% |
| 5–19 units | 9.4% |
| 20+ units | 7.5% |
| Mobile / other | 2.8% |
Businesses in 06811
586 business establishments with 6,224 employees (ZIP Codes Business Patterns 2023).
- Construction: 80
- Accommodation and Food Services: 78
- Retail Trade: 76
- Professional, Scientific, and Technical Services: 62
- Other Services (except Public Administration): 62
- Health Care and Social Assistance: 58
- Administrative and Support and Waste Management and Remediation Services: 42
- Finance and Insurance: 41
EDDM carrier routes
06811 has 27 USPS carrier routes with 11,794 residential and 634 business mailboxes. Open the EDDM route map.
Carrier routes in 06811
06811 has 27 USPS carrier routes (27 city (C)) with 11,794 residential and 634 business mailboxes. Routes range from 90 homes (C036) to 718 homes (C061); the median route has 419 homes. The Census counted 11,802 households in 06811 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 1 |
| 250–499 | 19 |
| 500–749 | 7 |
| 750–999 | 0 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 06811 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C036 — USPS business mailboxes 224, 90 homes
- Route C061 — USPS business mailboxes 125, 718 homes
- Route C065 — USPS business mailboxes 96, 419 homes
- Route C068 — USPS business mailboxes 51, 410 homes
- Route C070 — USPS business mailboxes 40, 361 homes
Select these 5 routes on the route map
Every carrier route in 06811
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C018 | City | 418 | 3 | $127,066 | — | — | — |
| C024 | City | 474 | 4 | $147,770 | — | — | — |
| C026 | City | 437 | 7 | $113,374 | — | — | — |
| C029 | City | 375 | 3 | $81,818 | — | — | — |
| C031 | City | 362 | 1 | $140,567 | — | — | — |
| C033 | City | 627 | 2 | $69,875 | — | — | — |
| C034 | City | 391 | 1 | $134,535 | — | — | — |
| C036 | City | 90 | 224 | $121,495 | — | — | — |
| C039 | City | 352 | 7 | $140,567 | — | — | — |
| C042 | City | 461 | 5 | $127,066 | — | — | — |
| C043 | City | 314 | 5 | $90,220 | — | — | — |
| C045 | City | 386 | 0 | $187,437 | — | — | — |
| C047 | City | 500 | 21 | $62,767 | — | — | — |
| C049 | City | 468 | 23 | $113,374 | — | — | — |
| C053 | City | 502 | 0 | $134,535 | — | — | — |
| C054 | City | 407 | 0 | $198,254 | — | — | — |
| C057 | City | 455 | 0 | $166,840 | — | — | — |
| C060 | City | 538 | 0 | $74,682 | — | — | — |
| C061 | City | 718 | 125 | $76,456 | — | — | — |
| C063 | City | 524 | 12 | $62,767 | — | — | — |
| C065 | City | 419 | 96 | $74,682 | — | — | — |
| C067 | City | 363 | 1 | $166,840 | — | — | — |
| C068 | City | 410 | 51 | $90,220 | — | — | — |
| C069 | City | 571 | 3 | $76,321 | — | — | — |
| C070 | City | 361 | 40 | $76,321 | — | — | — |
| C077 | City | 474 | 0 | $90,220 | — | — | — |
| C080 | City | 397 | 0 | $127,066 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 06811 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
- 06810 — Danbury city, CT (3.3 mi)
- 06812 — Ball Pond CDP, CT (4 mi)
- 06804 — Brookfield Center CDP, CT (5.2 mi)
- 06801 — Bethel CDP, CT (5.9 mi)
- 10509 — Peach Lake CDP, NY (6.1 mi)
- 06877 — Ridgefield CDP, CT (7.3 mi)
- 12563 — Putnam Lake CDP, NY (7.7 mi)
- 10560 — Peach Lake CDP, NY (8.4 mi)
Areas that include 06811
- Danbury, CT ZIP codes — 2 ZIP codes
- Fairfield County ZIP codes — 46 ZIP codes
- Connecticut ZIP code data
Where it ranks
Mail every home in 06811
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) 06811, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 06811 in?
- 06811 is a Danbury, CT mailing address. By land area, 100% lies inside Danbury.
- What county is 06811 in?
- 06811 is in Fairfield County.
- What is the population of 06811?
- About 31,228 people (±1,471), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 31,216.
- What is the median household income in 06811?
- $104,640 (±$9,014), compared with $95,781 for Connecticut as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 06811?
- 27 USPS carrier routes with 11,794 residential and 634 business mailboxes (12,436 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 06811?
- The closest, measured center to center: 06810 (3.3 mi, Danbury), 06812 (4 mi, Ball Pond), 06804 (5.2 mi, Brookfield Center), 06801 (5.9 mi, Bethel), 10509 (6.1 mi, Peach Lake) and 06877 (7.3 mi, Ridgefield).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.