46168 ZIP Code, Plainfield, IN

46168 is a ZIP code in Plainfield, Indiana in Hendricks County. It covers 33 square miles of land. The closest ZIP codes are 46231, 46123 and 46113. 38,826 people live here in 13,822 households, more than in 9 of every 10 Indiana ZIP codes. At about 1,183 people per square mile it has suburban density, and owners and renters are mixed (67% own). Median household income is $90,000, above the Indiana median of $71,957.

Quick facts

Key figures

MeasureValue
Residents38,826
Households13,822
Median household income$90,000
Income per person$39,739
Median age38
Homeowners66.6%
Median home value$297,200
Median rent$1,491
Bachelor's degree or higher34.7%
Average commute (minutes)24.2
Households with kids under 1835.1%
Moved in the past year18.0%
Below the poverty line8.5%
Broadband internet93.1%
Speak a non-English language at home9.7%

Household income

% of householdsValue
<$10K4.7%
$10–15K1.8%
$15–25K4.3%
$25–35K5.4%
$35–50K7.9%
$50–75K16.0%
$75–100K16.2%
$100–150K22.7%
$150–200K10.3%
$200K+10.8%

Age

% of all residentsValue
<1011.8%
10–1910.8%
20–247.4%
25–3414.8%
35–4416.8%
45–5410.9%
55–6411.0%
65–749.0%
75+7.2%

Tenure

% of housing unitsValue
Owned, with mortgage45.0%
Owned outright19.4%
Rented31.6%
Vacant4.0%

Type of building

% of housing unitsValue
Detached house67.3%
Townhome5.7%
2–4 units5.5%
5–19 units13.3%
20+ units5.8%
Mobile / other2.4%

Businesses in 46168

1,019 business establishments with 30,678 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

46168 has 25 USPS carrier routes with 16,942 residential and 1,125 business mailboxes. Open the EDDM route map.

Carrier routes in 46168

46168 has 25 USPS carrier routes (11 city (C), 14 rural (R)) with 16,942 residential and 1,125 business mailboxes. Routes range from 83 homes (C014) to 1,312 homes (C010); the median route has 742 homes. The Census counted 13,822 households in 46168 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2491
250–4994
500–7497
750–9999
1,000–1,4993
1,500+0

Best routes in 46168 for…

Most businesses

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

  1. Route C010 — USPS business mailboxes 364, 1,312 homes
  2. Route R011 — USPS business mailboxes 134, 354 homes
  3. Route R022 — USPS business mailboxes 90, 0 homes
  4. Route C008 — USPS business mailboxes 80, 336 homes
  5. Route R021 — USPS business mailboxes 79, 796 homes

Select these 5 routes on the route map

Every carrier route in 46168

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C001City50110$51,721———
C002City44518$58,918———
C003City1,13776$44,692———
C004City7595$71,821———
C005City4753$115,466———
C006City75667$35,245———
C007City55810$104,021———
C008City33680$115,466———
C010City1,312364$75,178———
C011City81148$82,813———
C014City831$49,321———
R001Rural8382$154,459———
R003Rural7571$75,178———
R004Rural7010$75,178———
R005Rural60458$114,439———
R007Rural7631$99,214———
R008Rural70610$154,459———
R011Rural354134$59,992———
R014Rural8290$111,881———
R017Rural1,1434$129,438———
R018Rural72812$104,021———
R019Rural89722$115,466———
R020Rural65330$75,178———
R021Rural79679$111,881———
R022Rural090$114,439———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 46168 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 46168

Where it ranks

Mail every home in 46168

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) 46168, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 46168 in?
46168 is a Plainfield, IN mailing address. By land area, 60% lies inside Plainfield and 6% lies inside Avon; the rest is outside any Census-defined city or community.
What county is 46168 in?
46168 is in Hendricks County.
What is the population of 46168?
About 38,826 people (±1,088), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 37,681.
What is the median household income in 46168?
$90,000 (±$5,527), compared with $71,957 for Indiana as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 46168?
25 USPS carrier routes with 16,942 residential and 1,125 business mailboxes (18,075 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 46168?
The closest, measured center to center: 46231 (4 mi, Indianapolis city (balance), IN), 46123 (5.2 mi, Avon), 46113 (6.1 mi, Indianapolis city (balance), IN), 46183 (6.4 mi, Indianapolis city (balance), IN), 46241 (6.7 mi, Indianapolis city (balance), IN) and 46118 (7.7 mi, Clayton).

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