What city is 80118 in?

80118 is a Larkspur, CO mailing address. By land area, 6% lies inside Perry Park and 1% lies inside Larkspur; the rest is outside any Census-defined city or community.

What is the population of 80118?

About 5,632 people (±775), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 6,057.

What is the median household income in 80118?

$158,155 (±$30,200), 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 80118?

6 USPS carrier routes with 2,498 residential and 45 business mailboxes (2,543 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 80118?

The closest, measured center to center: 80133 (5.3 mi, Palmer Lake), 80132 (7.2 mi, Monument), 80104 (8.5 mi, Castle Rock), 80921 (9.5 mi, Colorado Springs), 80109 (12.7 mi, Castle Rock) and 80116 (12.9 mi, Franktown).

80118 ZIP Code, Larkspur, CO

80118 is a ZIP code in Larkspur, Colorado in Douglas County. It covers 131 square miles of land. The closest ZIP codes are 80133, 80132 and 80104. 5,632 people live here in 2,165 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (96%). Median household income is $158,155, well above the Colorado median of $95,470; the median age is 54.0, older than most ZIP codes.

Quick facts

Mailing city: Larkspur, CO
County: Douglas County
Land area: 131 sq mi
Population: 5,632
Median household income: $158,155
Carrier routes: 6 (2,498 homes)

Key figures

Measure	Value
Residents	5,632
Households	2,165
Median household income	$158,155
Income per person	$87,487
Median age	54
Homeowners	96.0%
Median home value	$886,900
Median rent	$3,501
Bachelor's degree or higher	62.7%
Average commute (minutes)	32.4
Households with kids under 18	22.8%
Moved in the past year	10.1%
Below the poverty line	2.5%
Broadband internet	98.2%
Speak a non-English language at home	3.3%

Household income

% of households	Value
<$10K	1.8%
$10–15K	0.3%
$15–25K	1.1%
$25–35K	2.1%
$35–50K	3.3%
$50–75K	7.4%
$75–100K	5.2%
$100–150K	25.9%
$150–200K	11.9%
$200K+	41.0%

Age

% of all residents	Value
<10	6.5%
10–19	9.6%
20–24	5.6%
25–34	8.8%
35–44	7.8%
45–54	14.9%
55–64	25.1%
65–74	13.4%
75+	8.3%

Tenure

% of housing units	Value
Owned, with mortgage	64.6%
Owned outright	27.1%
Rented	3.7%
Vacant	4.6%

Type of building

% of housing units	Value
Detached house	91.8%
Townhome	6.4%
2–4 units	0.1%
5–19 units	0.0%
20+ units	0.0%
Mobile / other	1.7%

Businesses in 80118

184 business establishments with 602 employees (ZIP Codes Business Patterns 2023).

Professional, Scientific, and Technical Services: 51
Construction: 30
Retail Trade: 19
Real Estate and Rental and Leasing: 13
Other Services (except Public Administration): 10
Finance and Insurance: 8
Administrative and Support and Waste Management and Remediation Services: 8
Accommodation and Food Services: 8

EDDM carrier routes

80118 has 6 USPS carrier routes with 2,498 residential and 45 business mailboxes. Open the EDDM route map.

Carrier routes in 80118

80118 has 6 USPS carrier routes (6 rural (R)) with 2,498 residential and 45 business mailboxes. Routes range from 55 homes (R006) to 525 homes (R004); the median route has 497 homes. The Census counted 2,165 households in 80118 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	1
250–499	2
500–749	3
750–999	0
1,000–1,499	0
1,500+	0

Best routes in 80118 for…

Most businesses

For B2B offers: office supplies, cleaning, IT, catering and commercial services.

Route R005 — USPS business mailboxes 26, 502 homes
Route R004 — USPS business mailboxes 9, 525 homes
Route R002 — USPS business mailboxes 4, 523 homes
Route R003 — USPS business mailboxes 2, 492 homes
Route R001 — USPS business mailboxes 2, 401 homes

Select these 5 routes on the route map

Every carrier route in 80118

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
R001	Rural	401	2	$157,022	—	—	—
R002	Rural	523	4	$154,928	—	—	—
R003	Rural	492	2	$154,928	—	—	—
R004	Rural	525	9	$154,928	—	—	—
R005	Rural	502	26	$165,132	—	—	—
R006	Rural	55	2	$157,022	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 80118 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

80133 — Palmer Lake town, CO (5.3 mi)
80132 — Monument town, CO (7.2 mi)
80104 — Castle Rock town, CO (8.5 mi)
80921 — Colorado Springs city, CO (9.5 mi)
80109 — Castle Rock town, CO (12.7 mi)
80116 — Franktown CDP, CO (12.9 mi)
80840 — Air Force Academy CDP, CO (13.1 mi)
80863 — Woodland Park city, CO (14.2 mi)

Areas that include 80118

Where it ranks

Mail every home in 80118

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) 80118, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 80118 in?: 80118 is a Larkspur, CO mailing address. By land area, 6% lies inside Perry Park and 1% lies inside Larkspur; the rest is outside any Census-defined city or community.
What county is 80118 in?: 80118 is in Douglas County.
What is the population of 80118?: About 5,632 people (±775), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 6,057.
What is the median household income in 80118?: $158,155 (±$30,200), 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 80118?: 6 USPS carrier routes with 2,498 residential and 45 business mailboxes (2,543 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 80118?: The closest, measured center to center: 80133 (5.3 mi, Palmer Lake), 80132 (7.2 mi, Monument), 80104 (8.5 mi, Castle Rock), 80921 (9.5 mi, Colorado Springs), 80109 (12.7 mi, Castle Rock) and 80116 (12.9 mi, Franktown).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.