39665 ZIP Code, Sontag, MS

39665 is a ZIP code in Sontag, Mississippi — mostly in Lawrence County (75% of its land), with smaller parts in Lincoln County. It covers 60 square miles of land. The closest ZIP codes are 39654, 39663 and 39191. 755 people live here in 403 households. It is rural, with fewer than 100 people per square mile, and most homes are owner-occupied (76%). Median household income is $32,875, well below the Mississippi median of $56,447; the median age is 55.3, older than most ZIP codes.

Quick facts

Key figures

MeasureValue
Residents755
Households403
Median household income$32,875
Income per person$32,320
Median age55.3
Homeowners75.7%
Median home valuenot published
Median rentnot published
Bachelor's degree or higher18.7%
Average commute (minutes)52.1
Households with kids under 183.7%
Moved in the past year5.3%
Below the poverty line19.9%
Broadband internet67.0%
Speak a non-English language at home9.7%

Household income

% of householdsValue
<$10K13.9%
$10–15K18.6%
$15–25K0.0%
$25–35K19.6%
$35–50K19.1%
$50–75K0.0%
$75–100K6.5%
$100–150K10.2%
$150–200K12.2%
$200K+0.0%

Age

% of all residentsValue
<105.7%
10–1914.1%
20–240.0%
25–346.0%
35–4412.3%
45–5410.6%
55–6427.5%
65–7413.1%
75+10.8%

Tenure

% of housing unitsValue
Owned, with mortgage9.2%
Owned outright53.2%
Rented20.0%
Vacant17.6%

Type of building

% of housing unitsValue
Detached house52.1%
Townhome0.0%
2–4 units0.0%
5–19 units0.0%
20+ units0.0%
Mobile / other47.9%

Businesses in 39665

7 business establishments with 18 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

39665 has 1 USPS carrier routes with 491 residential and 2 business mailboxes. Open the EDDM route map.

Carrier routes in 39665

39665 has 1 USPS carrier routes (1 rural (R)) with 491 residential and 2 business mailboxes. Routes range from 491 homes (R031) to 491 homes (R031); the median route has 491 homes. The Census counted 403 households in 39665 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4991
500–7490
750–9990
1,000–1,4990
1,500+0

Every carrier route in 39665

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
R031Rural4912$53,127———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 39665 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 39665

Mail every home in 39665

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) 39665, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 39665 in?
39665 is a Sontag, MS mailing address. None of its land lies inside a Census-defined city or community.
What county is 39665 in?
39665 is mostly in Lawrence County (75% of its land), with smaller parts in Lincoln County.
What is the population of 39665?
About 755 people (±257), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 972.
What is the median household income in 39665?
$32,875 (±$14,541), compared with $56,447 for Mississippi as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 39665?
1 USPS carrier routes with 491 residential and 2 business mailboxes (493 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 39665?
The closest, measured center to center: 39654 (7.9 mi, Monticello), 39663 (10.8 mi, Silver Creek), 39191 (12.6 mi, Wesson), 39140 (13.6 mi, New Hebron), 39601 (16.1 mi, Brookhaven) and 39078 (16.4 mi, Georgetown).

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