80621 ZIP Code, Fort Lupton, CO
80621 is a ZIP code in Fort Lupton, Colorado in Weld County. It covers 127 square miles of land. The closest ZIP codes are 80530, 80520 and 80514. 15,060 people live here in 5,052 households. With about 119 people per square mile it is lightly settled, and most homes are owner-occupied (74%). Median household income is $90,055, close to the Colorado median of $95,470.
Quick facts
- Mailing city: Fort Lupton, CO
- County: Weld County
- Land area: 127 sq mi
- Population: 15,060
- Median household income: $90,055
- Carrier routes: 9 (5,884 homes)
Key figures
| Measure | Value |
|---|---|
| Residents | 15,060 |
| Households | 5,052 |
| Median household income | $90,055 |
| Income per person | $35,811 |
| Median age | 36.3 |
| Homeowners | 74.1% |
| Median home value | $463,200 |
| Median rent | $1,316 |
| Bachelor's degree or higher | 18.3% |
| Average commute (minutes) | 32.1 |
| Households with kids under 18 | 37.8% |
| Moved in the past year | 9.2% |
| Below the poverty line | 14.4% |
| Broadband internet | 88.8% |
| Speak a non-English language at home | 33.0% |
Household income
| % of households | Value |
|---|---|
| <$10K | 4.5% |
| $10–15K | 3.2% |
| $15–25K | 3.3% |
| $25–35K | 7.2% |
| $35–50K | 12.8% |
| $50–75K | 12.4% |
| $75–100K | 14.5% |
| $100–150K | 19.9% |
| $150–200K | 13.6% |
| $200K+ | 8.6% |
Age
| % of all residents | Value |
|---|---|
| <10 | 11.7% |
| 10–19 | 15.5% |
| 20–24 | 5.6% |
| 25–34 | 15.5% |
| 35–44 | 14.0% |
| 45–54 | 12.3% |
| 55–64 | 12.1% |
| 65–74 | 8.2% |
| 75+ | 5.0% |
Tenure
| % of housing units | Value |
|---|---|
| Owned, with mortgage | 53.2% |
| Owned outright | 19.8% |
| Rented | 25.1% |
| Vacant | 1.8% |
Type of building
| % of housing units | Value |
|---|---|
| Detached house | 81.7% |
| Townhome | 3.5% |
| 2–4 units | 4.1% |
| 5–19 units | 1.7% |
| 20+ units | 0.8% |
| Mobile / other | 8.2% |
Businesses in 80621
318 business establishments with 3,646 employees (ZIP Codes Business Patterns 2023).
- Construction: 56
- Transportation and Warehousing: 40
- Other Services (except Public Administration): 31
- Retail Trade: 26
- Health Care and Social Assistance: 24
- Administrative and Support and Waste Management and Remediation Services: 21
- Accommodation and Food Services: 20
- Mining, Quarrying, and Oil and Gas Extraction: 19
EDDM carrier routes
80621 has 9 USPS carrier routes with 5,884 residential and 309 business mailboxes. Open the EDDM route map.
Carrier routes in 80621
80621 has 9 USPS carrier routes (4 city (C), 5 rural (R)) with 5,884 residential and 309 business mailboxes. Routes range from 428 homes (C001) to 984 homes (C002); the median route has 655 homes. The Census counted 5,052 households in 80621 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.
| Homes per route | Routes |
|---|---|
| 1–249 | 0 |
| 250–499 | 3 |
| 500–749 | 2 |
| 750–999 | 4 |
| 1,000–1,499 | 0 |
| 1,500+ | 0 |
Best routes in 80621 for…
Most businesses
For B2B offers: office supplies, cleaning, IT, catering and commercial services.
- Route C004 — USPS business mailboxes 145, 655 homes
- Route R001 — USPS business mailboxes 30, 474 homes
- Route R003 — USPS business mailboxes 29, 780 homes
- Route R005 — USPS business mailboxes 29, 545 homes
- Route C003 — USPS business mailboxes 28, 769 homes
Select these 5 routes on the route map
Every carrier route in 80621
| Route | Type | Homes | Businesses | Est. median income | Est. owners | Est. families with kids | Est. moved in past year |
|---|---|---|---|---|---|---|---|
| C001 | City | 428 | 3 | $52,331 | — | — | — |
| C002 | City | 984 | 4 | $66,312 | — | — | — |
| C003 | City | 769 | 28 | $52,331 | — | — | — |
| C004 | City | 655 | 145 | $52,331 | — | — | — |
| R001 | Rural | 474 | 30 | $66,868 | — | — | — |
| R002 | Rural | 454 | 19 | $112,924 | — | — | — |
| R003 | Rural | 780 | 29 | $112,924 | — | — | — |
| R004 | Rural | 795 | 22 | $67,727 | — | — | — |
| R005 | Rural | 545 | 29 | $94,227 | — | — | — |
Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 80621 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
- 80530 — Frederick town, CO (6.4 mi)
- 80520 — Firestone town, CO (7 mi)
- 80514 — Dacono city, CO (8.5 mi)
- 80651 — Platteville town, CO (9.2 mi)
- 80601 — Brighton city, CO (10 mi)
- 80642 — Hudson town, CO (10.7 mi)
- 80602 — Thornton city, CO (11.3 mi)
- 80516 — Erie town, CO (12.2 mi)
Areas that include 80621
- Fort Lupton, CO ZIP codes — 1 ZIP code
- Aristocrat Ranchettes, CO ZIP codes — 1 ZIP code
- Weld County ZIP codes — 39 ZIP codes
- Colorado ZIP code data
Mail every home in 80621
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) 80621, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.
Frequently asked questions
- What city is 80621 in?
- 80621 is a Fort Lupton, CO mailing address. By land area, 10% lies inside Fort Lupton and 1% lies inside Aristocrat Ranchettes; the rest is outside any Census-defined city or community.
- What county is 80621 in?
- 80621 is in Weld County.
- What is the population of 80621?
- About 15,060 people (±943), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 13,343.
- What is the median household income in 80621?
- $90,055 (±$7,799), compared with $95,470 for Colorado as a whole. Half the households in the ZIP code earn more and half earn less.
- How many carrier routes and mailboxes are in 80621?
- 9 USPS carrier routes with 5,884 residential and 309 business mailboxes (6,195 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
- What ZIP codes are near 80621?
- The closest, measured center to center: 80530 (6.4 mi, Frederick), 80520 (7 mi, Firestone), 80514 (8.5 mi, Dacono), 80651 (9.2 mi, Platteville), 80601 (10 mi, Brighton) and 80642 (10.7 mi, Hudson).
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.