What city is 95377 in?

95377 is a Tracy, CA mailing address. By land area, 12% lies inside Tracy; the rest is outside any Census-defined city or community.

What is the population of 95377?

About 37,739 people (±1,979), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 34,590.

What is the median household income in 95377?

$158,158 (±$10,591), compared with $99,122 for California as a whole. Half the households in the ZIP code earn more and half earn less.

How many carrier routes and mailboxes are in 95377?

18 USPS carrier routes with 12,874 residential and 309 business mailboxes (13,185 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.

What ZIP codes are near 95377?

The closest, measured center to center: 95376 (6.3 mi, Tracy), 95304 (7.4 mi, Tracy), 95391 (8.6 mi, Mountain House), 94550 (11.1 mi, Livermore), 94514 (12.3 mi, Byron) and 94551 (13.8 mi, Livermore).

95377 ZIP Code, Tracy, CA

Q: What county is 95377 in?

95377 is mostly in San Joaquin County (89% of its land), with smaller parts in Alameda County.

95377 is a ZIP code in Tracy, California — mostly in San Joaquin County (89% of its land), with smaller parts in Alameda County. It covers 110 square miles of land. The closest ZIP codes are 95376, 95304 and 95391. 37,739 people live here in 10,170 households. With about 343 people per square mile it is lightly settled, and most homes are owner-occupied (75%). Median household income is $158,158, well above the California median of $99,122; 52% of households have children under 18.

Quick facts

Mailing city: Tracy, CA
County: San Joaquin County
Land area: 110 sq mi
Population: 37,739
Median household income: $158,158
Carrier routes: 18 (12,874 homes)

Key figures

Measure	Value
Residents	37,739
Households	10,170
Median household income	$158,158
Income per person	$49,945
Median age	36.7
Homeowners	74.6%
Median home value	$834,600
Median rent	$3,031
Bachelor's degree or higher	37.5%
Average commute (minutes)	47.2
Households with kids under 18	52.3%
Moved in the past year	11.6%
Below the poverty line	4.5%
Broadband internet	97.8%
Speak a non-English language at home	47.8%

Household income

% of households	Value
<$10K	0.8%
$10–15K	1.1%
$15–25K	1.2%
$25–35K	2.0%
$35–50K	1.8%
$50–75K	4.1%
$75–100K	10.4%
$100–150K	25.1%
$150–200K	22.6%
$200K+	30.9%

Age

% of all residents	Value
<10	13.1%
10–19	16.5%
20–24	6.0%
25–34	11.7%
35–44	15.8%
45–54	14.8%
55–64	11.0%
65–74	7.4%
75+	3.7%

Tenure

% of housing units	Value
Owned, with mortgage	59.6%
Owned outright	12.3%
Rented	24.2%
Vacant	3.9%

Type of building

% of housing units	Value
Detached house	91.9%
Townhome	3.1%
2–4 units	1.0%
5–19 units	1.1%
20+ units	2.8%
Mobile / other	0.1%

Businesses in 95377

542 business establishments with 14,361 employees (ZIP Codes Business Patterns 2023).

Transportation and Warehousing: 161
Professional, Scientific, and Technical Services: 56
Health Care and Social Assistance: 56
Construction: 51
Administrative and Support and Waste Management and Remediation Services: 40
Accommodation and Food Services: 32
Other Services (except Public Administration): 30
Retail Trade: 29

EDDM carrier routes

95377 has 18 USPS carrier routes with 12,874 residential and 309 business mailboxes. Open the EDDM route map.

Carrier routes in 95377

95377 has 18 USPS carrier routes (6 city (C), 12 rural (R)) with 12,874 residential and 309 business mailboxes. Routes range from 530 homes (C037) to 919 homes (C035); the median route has 735 homes. The Census counted 10,170 households in 95377 (2020–2024 average); USPS counts current mailboxes, including new and vacant homes.

Homes per route	Routes
1–249	0
250–499	0
500–749	12
750–999	6
1,000–1,499	0
1,500+	0

Best routes in 95377 for…

Most businesses

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

Route C033 — USPS business mailboxes 86, 601 homes
Route R005 — USPS business mailboxes 73, 572 homes
Route R017 — USPS business mailboxes 51, 645 homes
Route R001 — USPS business mailboxes 47, 743 homes
Route R021 — USPS business mailboxes 38, 727 homes

Select these 5 routes on the route map

Every carrier route in 95377

Route	Type	Homes	Businesses	Est. median income	Est. owners	Est. families with kids	Est. moved in past year
C024	City	744	1	$200,001+	—	—	—
C028	City	707	1	$115,696	—	—	—
C033	City	601	86	$114,017	—	—	—
C035	City	919	0	$145,671	—	—	—
C036	City	799	0	$159,102	—	—	—
C037	City	530	0	$114,017	—	—	—
R001	Rural	743	47	$191,607	—	—	—
R005	Rural	572	73	$163,810	—	—	—
R009	Rural	825	0	$94,581	—	—	—
R015	Rural	561	1	$156,885	—	—	—
R017	Rural	645	51	$192,161	—	—	—
R020	Rural	661	5	$191,607	—	—	—
R021	Rural	727	38	$163,810	—	—	—
R030	Rural	816	0	$191,607	—	—	—
R033	Rural	805	2	$152,196	—	—	—
R034	Rural	854	3	$191,607	—	—	—
R035	Rural	743	0	$191,607	—	—	—
R036	Rural	622	1	$191,607	—	—	—

Income, owners, families and movers are estimates for each route (how we estimate them); mailbox counts are current USPS figures. Open 95377 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

95376 — Tracy city, CA (6.3 mi)
95304 — Tracy city, CA (7.4 mi)
95391 — Mountain House CDP, CA (8.6 mi)
94550 — Livermore city, CA (11.1 mi)
94514 — Byron CDP, CA (12.3 mi)
94551 — Livermore city, CA (13.8 mi)
94505 — Discovery Bay CDP, CA (14.3 mi)
95330 — Lathrop city, CA (14.6 mi)

Areas that include 95377

Tracy, CA ZIP codes — 4 ZIP codes
Alameda County ZIP codes — 52 ZIP codes
San Joaquin County ZIP codes — 33 ZIP codes
California ZIP code data

Where it ranks

Mail every home in 95377

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) 95377, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 95377 in?: 95377 is a Tracy, CA mailing address. By land area, 12% lies inside Tracy; the rest is outside any Census-defined city or community.
What county is 95377 in?: 95377 is mostly in San Joaquin County (89% of its land), with smaller parts in Alameda County.
What is the population of 95377?: About 37,739 people (±1,979), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 34,590.
What is the median household income in 95377?: $158,158 (±$10,591), compared with $99,122 for California as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 95377?: 18 USPS carrier routes with 12,874 residential and 309 business mailboxes (13,185 in all), from the route data stored by EDDM2GO. An EDDM mailing can target any combination of these routes.
What ZIP codes are near 95377?: The closest, measured center to center: 95376 (6.3 mi, Tracy), 95304 (7.4 mi, Tracy), 95391 (8.6 mi, Mountain House), 94550 (11.1 mi, Livermore), 94514 (12.3 mi, Byron) and 94551 (13.8 mi, Livermore).

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