ZIP Code Guide
95123
South San Jose Corridor
At the crossroads of Highways 85 and 87: a South San Jose ZIP shaped by postwar ranch development, orchard-era agriculture, and foothill open space
- Blossom Valley
- Santa Teresa
- Edenvale
ZIP code 95123 covers a broad swath of South San Jose within Santa Clara County — one of the city's most populous postal areas and a corridor where suburban residential neighborhoods meet the Santa Teresa foothills. The code spans portions of Blossom Valley, Santa Teresa, and Edenvale, each with distinct street patterns and development eras but shared access to regional freeways and South Bay employment centers.
Geographic Position
95123 occupies the southern tier of incorporated San Jose, generally bounded by Blossom Hill Road to the north and extending toward rural and foothill terrain along the city's southern and eastern edges. The ZIP sits at a strategic junction where State Route 85 and State Route 87 converge, linking residents to downtown San Jose, Silicon Valley campuses, and the greater Bay Area freeway network.
The Santa Teresa Foothills and Santa Teresa County Park form a prominent eastern backdrop, offering trail systems and open space that contrast with the valley-floor grid of postwar subdivisions to the west. Los Gatos Creek and associated greenways lie within regional reach, connecting the area to broader South Bay recreation corridors.
Neighborhood Character
Orchard agriculture dominates the South San Jose plain; Blossom Valley earns its name from flowering fruit trees that once covered much of the present ZIP area.
Large-scale suburban tract development transforms former orchard land into single-story ranch neighborhoods — the housing stock that still defines much of 95123 today.
Westfield Oakridge and commercial corridors along Blossom Hill Road and Almaden Expressway expand retail and service employment within the ZIP's northern reach.
Infill townhomes, condominium projects, and selective redevelopment add density near transit and commercial nodes while established ranch tracts remain the dominant structure type.
Within 95123, Blossom Valley forms the largest contiguous residential area — a valley-floor neighborhood developed primarily in the decades after World War II. Santa Teresa, including portions along Snell Avenue and toward the foothills, introduces more varied topography and hillside parcels. Edenvale and adjacent areas along the ZIP's northern boundary connect to commercial and industrial corridors that serve the broader South San Jose submarket.
Economy & Employment
Residents of 95123 draw income from employment across Silicon Valley and the greater South Bay. Major regional employers in technology, healthcare, education, and retail are reachable via Highway 85, Highway 87, and U.S. Route 101. Within and near the ZIP, retail centers including Westfield Oakridge, neighborhood shopping along Blossom Hill Road, and service businesses along major arterials provide local jobs.
The ZIP's freeway access supports commuting patterns typical of South San Jose — residents traveling north toward central San Jose, west toward Cupertino and Sunnyvale, or south toward Morgan Hill and Gilroy employment nodes. Small businesses, professional offices, and healthcare clinics operate throughout the commercial strips bordering residential tracts.
Market & Housing Context
According to U.S. Census Bureau data for ZIP Code Tabulation Area 95123, the area had a population of approximately 70,040 and 24,996 housing units as of the 2020 Census. American Community Survey estimates for the 2019–2023 period indicate that roughly 65 percent of occupied housing units are owner-occupied and 35 percent are renter-occupied.
The dominant housing type is single-family detached ranch homes built during the 1960s and 1970s, typically ranging from roughly 1,000 to 2,000 square feet on suburban lots. Townhome and condominium developments appear in newer infill projects, particularly near commercial corridors. Housing density increases toward the ZIP's northern boundary and remains lower toward the foothill interface in the east and south.
Living in 95123
Public parks and recreation facilities within and near the ZIP include neighborhood parks throughout Blossom Valley, the extensive trail network of Santa Teresa County Park, and community sports fields maintained by the City of San Jose. Westfield Oakridge provides regional shopping, dining, and entertainment at the ZIP's northern edge.
Public schools are operated by the Oak Grove School District, Union School District, and Campbell Union High School District, depending on address within the ZIP. Campuses include Oak Grove High School, Herman Intermediate School, and multiple elementary schools serving Blossom Valley and Santa Teresa areas. Families evaluate school assignments based on specific addresses and district boundaries.
Valley Transportation Authority bus routes serve major corridors through the ZIP, and the VTA light rail system is accessible within a short drive or transit connection to northern San Jose stations.
95123 Today
70,040
Population (2020 Census ZCTA)
24,996
Housing Units (2020 Census)
~14 sq mi
Approximate ZCTA Land Area
1960s–70s
Dominant Housing Era
Government and Civic Life
95123 falls entirely within the City of San Jose municipal boundaries and Santa Clara County. City services — including planning, public works, fire, and police — are administered from San Jose City Hall. Neighborhood associations and community groups in Blossom Valley and Santa Teresa organize local events, traffic safety initiatives, and land-use input for city planning processes.
Culture and Community
The ZIP's civic life reflects South San Jose's suburban character — community festivals, farmers markets in neighboring districts, youth sports leagues, and active neighborhood associations. The Blossom Hill Branch Library and nearby community centers provide programming for residents across age groups.
Geography & Environment
95123 spans flat valley-floor terrain in its western and central portions, rising toward oak-studded foothills in the east. The Mediterranean climate — warm, dry summers and mild, wet winters — shapes landscaping choices and outdoor recreation patterns throughout the year.
Santa Teresa County Park preserves thousands of acres of open space at the ZIP's eastern margin, protecting habitat and providing hiking and equestrian trails. Urban tree canopy along residential streets and city parkland contribute to the area's suburban environmental character.
Transportation & Connectivity
State Route 85 and State Route 87 intersect within the ZIP, providing north-south and diagonal freeway access across Silicon Valley. U.S. Route 101 lies within a few miles to the west, connecting to regional employment centers. Blossom Hill Road, Santa Teresa Boulevard, and Snell Avenue serve as major surface arterials.
Norman Y. Mineta San Jose International Airport is reachable via freeway within approximately 20 to 30 minutes depending on traffic. Caltrain service is available at stations in northern San Jose, accessible by car or VTA transit connections.
Looking Forward
San Jose's general plan and housing element identify South San Jose — including areas within 95123 — for continued infill development, accessory dwelling unit construction, and transportation improvements along major corridors. City-approved projects near commercial nodes may add townhomes and multifamily housing while preserving established single-family neighborhoods.
VTA corridor planning and bicycle infrastructure investments proceed through regional transportation agencies. Residents participate in land-use decisions through city council meetings, planning commission hearings, and neighborhood association advocacy.
The ZIP's Character
95123 embodies the postwar suburban expansion that transformed South San Jose from orchard country into one of Northern California's largest residential markets. Ranch homes on tree-lined streets, freeway connectivity to Silicon Valley employment, and foothill open space at the eastern edge define the area's physical identity.
"95123 sits where valley orchards once met the Santa Teresa foothills — a South San Jose ZIP defined by ranch-era streets, freeway access, and the open space that still frames its eastern horizon."
From Blossom Valley's grid of mid-century tracts to the hillside interfaces of Santa Teresa, the ZIP offers a geographically varied slice of San Jose within a single postal boundary. Buyers, sellers, and investors evaluating 95123 benefit from understanding its neighborhood submarkets, housing-era mix, and position within the broader Santa Clara County real estate landscape.