What city is 01104 in?

01104 is a Springfield, MA mailing address. By land area, 100% lies inside Springfield.

What is the population of 01104?

About 23,209 people (±1,500), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 23,598.

What is the median household income in 01104?

$50,154 (±$7,617), compared with $103,960 for Massachusetts as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 01104?

20 USPS carrier routes with 9,324 residential and 614 business mailboxes (9,944 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 01104?

The closest, measured center to center: 01109 (1.3 mi, Springfield), 01013 (1.6 mi, Chicopee), 01107 (2.2 mi, Springfield), 01103 (2.3 mi, Springfield), 01144 (2.4 mi, Springfield) and 01105 (2.6 mi, Springfield).

01104 ZIP Code, Springfield, MA

01104 is a ZIP code in Springfield, Massachusetts in Hampden County. It covers 5.2 square miles of land. The closest ZIP codes are 01109, 01013 and 01107. 23,209 people live here in 9,043 households. At about 4,436 people per square mile it is built up to city-neighborhood density, and owners and renters are mixed (48% own). Median household income is $50,154, well below the Massachusetts median of $103,960.

Quick facts

Mailing city: Springfield, MA
County: Hampden County
Land area: 5.2 sq mi
Population: 23,209
Median household income: $50,154
Carrier routes: 20 (9,324 homes)

Key figures

Measure	Value
Residents	23,209
Households	9,043
Median household income	$50,154
Income per person	$27,194
Median age	34.7
Homeowners	47.8%
Median home value	$234,800
Median rent	$1,120
Bachelor's degree or higher	14.5%
Average commute (minutes)	16.8
Households with kids under 18	34.6%
Moved in the past year	7.8%
Below the poverty line	21.6%
Broadband internet	85.0%
Speak a non-English language at home	49.4%

Household income

% of households	Value
<$10K	7.5%
$10–15K	11.3%
$15–25K	10.1%
$25–35K	9.0%
$35–50K	12.1%
$50–75K	16.1%
$75–100K	10.9%
$100–150K	11.8%
$150–200K	7.3%
$200K+	4.0%

Age

% of all residents	Value
<10	13.5%
10–19	14.4%
20–24	7.8%
25–34	14.6%
35–44	12.7%
45–54	11.8%
55–64	13.4%
65–74	7.3%
75+	4.7%

Tenure

% of housing units	Value
Owned, with mortgage	35.2%
Owned outright	11.7%
Rented	47.8%
Vacant	5.3%

Type of building

% of housing units	Value
Detached house	45.8%
Townhome	5.5%
2–4 units	30.4%
5–19 units	4.6%
20+ units	13.3%
Mobile / other	0.4%

Businesses in 01104

514 business establishments with 16,297 employees (ZIP Codes Business Patterns 2023).

Health Care and Social Assistance: 84
Retail Trade: 83
Other Services (except Public Administration): 48
Wholesale Trade: 47
Accommodation and Food Services: 42
Transportation and Warehousing: 37
Construction: 34
Manufacturing: 26

EDDM carrier routes

01104 has 20 USPS carrier routes with 9,324 residential and 614 business mailboxes. Open the EDDM route map.

Carrier routes in 01104

01104 has 20 USPS carrier routes (20 city (C)) with 9,324 residential and 614 business mailboxes. Routes range from 159 homes (C006) to 982 homes (C026); the median route has 450 homes. The Census counted 9,043 households in 01104 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	2
250–499	11
500–749	6
750–999	1
1,000–1,499	0
1,500+	0

Best routes in 01104 for…

Most businesses

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

Route C002 — USPS business mailboxes 149, 172 homes
Route C006 — USPS business mailboxes 75, 159 homes
Route C025 — USPS business mailboxes 63, 622 homes
Route C001 — USPS business mailboxes 54, 596 homes
Route C024 — USPS business mailboxes 43, 413 homes

Select these 5 routes on the route map

Every carrier route in 01104

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C001	City	596	54	$13,948	—	—	—
C002	City	172	149	$102,213	—	—	—
C003	City	475	2	$39,113	—	—	—
C005	City	455	19	$23,489	—	—	—
C006	City	159	75	$29,689	—	—	—
C007	City	419	5	$54,851	—	—	—
C008	City	457	42	$102,213	—	—	—
C010	City	402	2	$85,336	—	—	—
C011	City	379	14	$47,602	—	—	—
C012	City	429	1	$100,000	—	—	—
C014	City	516	11	$47,602	—	—	—
C015	City	445	21	$83,545	—	—	—
C016	City	421	34	$29,689	—	—	—
C017	City	405	11	$83,545	—	—	—
C018	City	521	24	$47,602	—	—	—
C020	City	510	10	$83,545	—	—	—
C022	City	546	4	$47,460	—	—	—
C024	City	413	43	$55,183	—	—	—
C025	City	622	63	$39,113	—	—	—
C026	City	982	30	$13,948	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 01104 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

01109 — Springfield city, MA (1.3 mi)
01013 — Chicopee city, MA (1.6 mi)
01107 — Springfield city, MA (2.2 mi)
01103 — Springfield city, MA (2.3 mi)
01144 — Springfield city, MA (2.4 mi)
01105 — Springfield city, MA (2.6 mi)
01020 — Chicopee city, MA (2.8 mi)
01119 — Springfield city, MA (2.9 mi)

Areas that include 01104

Springfield, MA ZIP codes — 12 ZIP codes
Hampden County ZIP codes — 40 ZIP codes
Massachusetts ZIP code data

Where it ranks

Mail every home in 01104

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) 01104, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 01104 in?: 01104 is a Springfield, MA mailing address. By land area, 100% lies inside Springfield.
What county is 01104 in?: 01104 is in Hampden County.
What is the population of 01104?: About 23,209 people (±1,500), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 23,598.
What is the median household income in 01104?: $50,154 (±$7,617), compared with $103,960 for Massachusetts as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 01104?: 20 USPS carrier routes with 9,324 residential and 614 business mailboxes (9,944 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 01104?: The closest, measured center to center: 01109 (1.3 mi, Springfield), 01013 (1.6 mi, Chicopee), 01107 (2.2 mi, Springfield), 01103 (2.3 mi, Springfield), 01144 (2.4 mi, Springfield) and 01105 (2.6 mi, Springfield).

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