19604 ZIP Code, Reading, PA

19604 is a ZIP code in Reading, Pennsylvania in Berks County. It covers 2.5 square miles of land. The closest ZIP codes are 19601, 19602 and 19611. 30,124 people live here in 9,450 households, more than in 9 of every 10 Pennsylvania ZIP codes. It is densely built, at about 12,079 people per square mile, and owners and renters are mixed (49% own). Median household income is $52,905, below the Pennsylvania median of $77,971; 40% of households have children under 18.

Quick facts

Key figures

MeasureValue
Residents30,124
Households9,450
Median household income$52,905
Income per person$21,629
Median age29.4
Homeowners49.0%
Median home value$119,000
Median rent$1,183
Bachelor's degree or higher9.6%
Average commute (minutes)23.5
Households with kids under 1840.4%
Moved in the past year12.7%
Below the poverty line21.1%
Broadband internet90.2%
Speak a non-English language at home64.9%

Household income

% of householdsValue
<$10K2.6%
$10–15K6.7%
$15–25K12.4%
$25–35K11.8%
$35–50K13.0%
$50–75K21.3%
$75–100K11.8%
$100–150K15.5%
$150–200K1.9%
$200K+3.1%

Age

% of all residentsValue
<1013.7%
10–1920.0%
20–249.9%
25–3413.6%
35–4413.2%
45–5410.2%
55–6410.9%
65–744.8%
75+3.7%

Tenure

% of housing unitsValue
Owned, with mortgage29.3%
Owned outright17.6%
Rented47.7%
Vacant5.4%

Type of building

% of housing unitsValue
Detached house12.7%
Townhome64.1%
2–4 units15.0%
5–19 units4.4%
20+ units3.3%
Mobile / other0.5%

Businesses in 19604

192 business establishments with 1,754 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

19604 has 14 USPS carrier routes with 8,839 residential and 381 business mailboxes. Open the EDDM route map.

Carrier routes in 19604

19604 has 14 USPS carrier routes (14 city (C)) with 8,839 residential and 381 business mailboxes. Routes range from 319 homes (C032) to 864 homes (C018); the median route has 707 homes. The Census counted 9,450 households in 19604 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per routeRoutes
1–2490
250–4993
500–7498
750–9993
1,000–1,4990
1,500+0

Best routes in 19604 for…

Most businesses

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

  1. Route C028 — USPS business mailboxes 85, 525 homes
  2. Route C024 — USPS business mailboxes 78, 813 homes
  3. Route C018 — USPS business mailboxes 54, 864 homes
  4. Route C025 — USPS business mailboxes 23, 727 homes
  5. Route C016 — USPS business mailboxes 21, 729 homes

Select these 5 routes on the route map

Every carrier route in 19604

RouteTypeHomesBusinessesEst. median incomeEst. ownersEst. families with kidsEst. moved in past year
C016City72921$37,730———
C018City86454$26,165———
C020City73616$54,729———
C021City75215$26,165———
C024City81378$30,445———
C025City72723$55,002———
C026City71415$44,353———
C027City63421$55,002———
C028City52585$51,715———
C030City43710$78,522———
C031City70020$44,353———
C032City3195$78,522———
C033City3261$78,741———
C034City56317$61,747———

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 19604 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 19604

Where it ranks

Mail every home in 19604

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) 19604, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 19604 in?
19604 is a Reading, PA mailing address. By land area, 75% lies inside Reading; the rest is outside any Census-defined city or community.
What county is 19604 in?
19604 is in Berks County.
What is the population of 19604?
About 30,124 people (±1,652), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 29,347.
What is the median household income in 19604?
$52,905 (±$3,439), compared with $77,971 for Pennsylvania as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 19604?
14 USPS carrier routes with 8,839 residential and 381 business mailboxes (9,220 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 19604?
The closest, measured center to center: 19601 (1.5 mi, Reading), 19602 (2.2 mi, Reading), 19611 (2.9 mi, Reading), 19606 (3.1 mi, Reiffton), 19605 (3.4 mi, Riverview Park) and 19560 (3.5 mi, Temple).

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