83864 ZIP Code, Sandpoint, ID

83864 is a ZIP code in Sandpoint, Idaho — mostly in Bonner County (73% of its land), with smaller parts in Boundary County. It covers 402 square miles of land. The closest ZIP codes are 83852, 83840 and 83847. 20,514 people live here in 8,471 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (74%). Median household income is $70,496, close to the Idaho median of $77,800; the median age is 46.8, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents20,514
Households8,471
Median household income$70,496
Income per person$43,290
Median age46.8
Homeowners73.9%
Median home value$516,500
Median rent$1,184
Bachelor's degree or higher35.6%
Average commute (minutes)19
Households with kids under 1822.3%
Moved in the past year12.2%
Below the poverty line10.9%
Broadband internet92.6%
Speak a non-English language at home4.1%

Household income

% of householdsValue
<$10K4.0%
$10–15K5.2%
$15–25K8.1%
$25–35K10.3%
$35–50K10.3%
$50–75K15.0%
$75–100K14.2%
$100–150K16.8%
$150–200K7.1%
$200K+9.2%

Age

% of all residentsValue
<1011.6%
10–198.8%
20–243.2%
25–3411.6%
35–4412.5%
45–5411.8%
55–6414.4%
65–7416.2%
75+9.9%

Tenure

% of housing unitsValue
Owned, with mortgage32.8%
Owned outright28.4%
Rented21.5%
Vacant17.2%

Type of building

% of housing unitsValue
Detached house72.1%
Townhome8.1%
2–4 units3.6%
5–19 units5.4%
20+ units5.0%
Mobile / other5.9%

Businesses in 83864

956 business establishments with 8,482 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

83864 has 17 USPS carrier routes with 9,390 residential and 946 business mailboxes. Open the EDDM route map.

Carrier routes in 83864

83864 has 17 USPS carrier routes (4 city (C), 13 rural (R)) with 9,390 residential and 946 business mailboxes. Routes range from 116 homes (R015) to 801 homes (R011); the median route has 600 homes. The Census counted 8,471 households in 83864 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2491
250–4994
500–74910
750–9992
1,000–1,4990
1,500+0

Best routes in 83864 for…

Most businesses

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

  1. Route C001 — USPS business mailboxes 223, 285 homes
  2. Route C002 — USPS business mailboxes 171, 373 homes
  3. Route R011 — USPS business mailboxes 99, 801 homes
  4. Route C003 — USPS business mailboxes 87, 325 homes
  5. Route R002 — USPS business mailboxes 80, 555 homes

Select these 5 routes on the route map

Every carrier route in 83864

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City285223$39,553———
C002City373171$39,553———
C003City32587$39,553———
C004City45459$39,553———
R001Rural6004$100,898———
R002Rural55580$76,124———
R003Rural6223$76,552———
R004Rural64612$76,646———
R005Rural78053$76,124———
R006Rural64668$50,079———
R007Rural6446$84,141———
R008Rural7313$46,464———
R010Rural5739$46,464———
R011Rural80199$46,464———
R012Rural55551$39,553———
R013Rural6849$76,646———
R015Rural1169$46,464———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 83864 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

Areas that include 83864

Where it ranks

Mail every home in 83864

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) 83864, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 83864 in?
83864 is a Sandpoint, ID mailing address. By land area, 1% lies inside Sandpoint; the rest is outside any Census-defined city or community.
What county is 83864 in?
83864 is mostly in Bonner County (73% of its land), with smaller parts in Boundary County.
What is the population of 83864?
About 20,514 people (±797), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 19,414.
What is the median household income in 83864?
$70,496 (±$6,765), compared with $77,800 for Idaho as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 83864?
17 USPS carrier routes with 9,390 residential and 946 business mailboxes (10,337 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 83864?
The closest, measured center to center: 83852 (8.2 mi, Ponderay), 83840 (8.5 mi, Kootenai), 83847 (10.5 mi), 83825 (13.8 mi, Dover), 83821 (16.8 mi, Coolin) and 83860 (17.6 mi).

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