| City: | Porterville, California |
| County: | Tulare County |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 9:46:13 AM |
| Population: | 1,921 [See All] |
| Area Code: | 559 |
| Classification: | PO Box |
| Coordinates: | 36.0653, -119.0158 |
| Land Area: | 0.975 sq mi |
| Quick Link: |
ZIP code 93258 serves Porterville, California, in Tulare County's Central Valley. This PO Box classification serves a facility-based community concentrated on W Mill Avenue, where all 146 street delivery records share a single address with unit designators.
The post office maintains 1,344 PO Boxes for a local population of just 486 households. That's 2.77 boxes per household. This extreme adoption rate shows the ZIP serves a much broader area than the immediate residential footprint. The facility-focused delivery pattern and regional service model make PO Boxes the primary mail access point for workers and surrounding communities.
With 1,921 residents in 486 households, the population-to-household ratio of 3.95 suggests multi-family or multi-worker housing units. The median age of 28.2 years indicates a working-age population. Employment data shows the economic focus: 482 people work in transportation, warehousing, and utilities (38% of workers), while 249 work in agriculture (20% of workers). An additional 285 workers commute by public transit, one of the highest rates in California.
The community shows notable diversity. While 682 residents identify as White alone and 678 as Some Other Race, the ZIP also includes 276 Asian residents and 149 Hispanic residents. Educational attainment is low, with only 4.7% of adults holding bachelor's degrees. Median household income of $51,214 sits near the national median, while median home values of $187,500 are moderate for California. About half of households own their homes (249 owner-occupied vs 237 renter-occupied).
This ZIP code has a standard sibling (93257) that provides additional street delivery for the broader Porterville area. The P classification for 93258 reflects its specialized function as a facility-based service point rather than traditional residential delivery.
All street delivery concentrates on a single address with unit numbers, indicating a facility or multi-unit complex rather than traditional street layout.
ZIP Code 93258 has 1,921 residents and 486 households (average 3.93 persons per household). The median age is 28.2 years, significantly younger than the state (37.5) and significantly younger than the nation (38.8). The gender split is 50.1% male and 49.9% female, which is about the same as the national male share (49.1%). Largest groups are Hispanic or Latino (76.4%) and White (35.5%, much lower than the national average of 61.6%); Hispanic or Latino residents make up 76.4%, which is much higher than the national average (18.7%), and Other / Two or More Races share is much higher than both the state (21.2%) and national averages (8.4%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 1,921Source: Census DHC |
| 2024 ACS Population Estimate: | 1,398Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 1,970.3 people per sq mile |
| Average Income: | $51,319Source: Census ACS |
| Households: | 486Source: Census DHC |
| Average House Value: | $218,800Source: Census ACS |
| Persons Per Household: | 3.93Source: Census DHC |
| Average Family Size: | 3.72Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 1,455 | 1,650 | 1,854 | 2,292 | 2,277 | 2,650 | 2,254 | 2,075 | 1,952 | 1,366 | 1,158 | 1,086 | 1,241 | 1,398 |
| Decennial Census | 2,046 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1,921 | -- | -- | -- | -- |
Median Age: 28.2
Male Median Age: 26.9
Female Median Age: 29.6
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 76 | 85 | 103 | 88 | 88 | 88 | 53 | 45 | 63 | 38 | 51 | 49 | 61 | 28 | 20 | 9 | 12 | 5 |
| Female | 83 | 67 | 109 | 85 | 73 | 70 | 68 | 51 | 62 | 38 | 45 | 50 | 33 | 44 | 30 | 11 | 26 | 14 |
| Total | 159 | 152 | 212 | 173 | 161 | 158 | 121 | 96 | 125 | 76 | 96 | 99 | 94 | 72 | 50 | 20 | 38 | 19 |
| White: | 682 | 21.73% |
| Black: | 6 | 0.19% |
| Hispanic:* | 1,468 | 46.77% |
| Asian: | 276 | 8.79% |
| American Indian: | 26 | 0.83% |
| Hawaiian: | 3 | 0.10% |
| Other: | 678 | 21.60% |
| Total: | 3,139 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 962 | 50.08% | 26.9 years |
| Females: | 959 | 49.92% | 29.6 years |
| Total: | 1,921 | 100% | 28.2 years |
| Native, born in the United States: | 724 | 51.79% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 141 | 10.09% |
| Foreign born, not a U.S. citizen: | 533 | 48.21% |
| Total Population: | 1,398 | 100% |
| Total Native Population: | 724 | 51.79% |
| Total Foreign-born Population: | 674 | 48.21% |
In 2024, the Median household income is $51,319, which is far less than the national median ($80,734), is up $22,837 (80.2%) since 2011 and above its 2019 pre-pandemic level by $19,375. Family households earn a median of $60,707 versus $50,382 for nonfamily households (a difference of $10,325). By gender, male median income is $39,762 and female is $26,969, which is much lower than the national female median ($55,274), with a current gap of $12,793 that has widened from 2011 to 2024. The labor-force participation rate is 59.7%, which is falls short of the national rate (63.5%). The unemployment rate is 7.5%, which is far worse than the national rate (5.2%). The largest occupation group is Natural resources (57.7%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $28,482 | $27,756 | $20,417 | $20,896 | $20,878 | $21,985 | $22,500 | $28,387 | $31,944 | $35,034 | $40,257 | $47,639 | $51,214 | $51,319 |
| Median Family Income | $26,875 | $27,692 | $19,856 | $20,649 | $21,500 | $23,854 | $24,271 | $31,528 | $34,022 | $35,507 | $41,176 | $54,063 | $49,833 | $60,707 |
| Median NonFamily Income | $35,125 | $16,250 | $20,179 | $11,875 | $0 | $11,645 | $12,279 | $16,667 | $17,794 | $0 | $0 | $0 | $50,643 | $50,382 |
| Median Male Income | $27,059 | $23,482 | $23,158 | $23,611 | $32,750 | $32,583 | $35,742 | $37,417 | $39,491 | $42,969 | $45,486 | $49,103 | $44,141 | $39,762 |
| Median Female Income | $22,056 | $21,314 | $26,550 | $25,250 | $25,260 | $26,250 | $27,222 | $26,103 | $30,972 | $35,329 | $0 | $0 | $26,210 | $26,969 |
| Employed: | 615 | 55.26% |
| Unemployed: | 50 | 4.49% |
| Not In Labor Force: | 448 | 40.25% |
| Total: | 1,113 | 100% |
| Management, business, science, and arts: | 43 | 6.99% |
| Service: | 114 | 18.54% |
| Sales and Office: | 46 | 7.48% |
| Natural resources, construction, and maintenance: | 355 | 57.72% |
| Production, transportation, and material moving: | 57 | 9.27% |
| Total Civilian Employed Population: | 615 | 100% |
In 2024, the median home value is $218,800, which is much lower than the national median ($332,700), is up $75,500 (52.69%) since 2011 and above its 2019 pre-pandemic level by $98,200. The median gross rent is $1,113, which is far less than the national median ($1,413), is up $389 (53.73%) since 2011 and above its 2019 pre-pandemic level by $303. Of occupied housing, owners make up 45.43% (53.25% with a mortgage, 46.75% free-and-clear) and renters 54.57% - making this ZIP Code higher than national rental averages. The vacancy rate is 9.71%, which is markedly below the national rate (10.12%).
Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $143,300 | $130,700 | $93,400 | $87,300 | $86,100 | $95,200 | $92,900 | $102,400 | $120,600 | $125,500 | $95,000 | $0 | $187,500 | $218,800 |
| Less than $500: | 0 | 0.00% |
| $500 to $999: | 65 | 32.02% |
| $1,000 to $1,499: | 122 | 60.10% |
| $1,500 to $1,999: | 16 | 7.88% |
| $2,000 to $2,499: | 0 | 0.00% |
| $2,500 to $2,999: | 0 | 0.00% |
| $3,000 or more: | 0 | 0.00% |
| No Rent: | 0 | 0.00% |
| Total: | 203 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $724 | $725 | $686 | $701 | $708 | $759 | $778 | $825 | $810 | $838 | $881 | $897 | $1,043 | $1,113 |
| Owner Occupied (with mortgage): | 90 | 24.19% |
| Owner Occupied (free and clear, no mortgage): | 79 | 21.24% |
| Renter Occupied: | 203 | 54.57% |
| Total Occupied Housing Units: | 372 | 100% |
| Occupied Housing Units: | 372 | 90.29% |
| Vacant Housing Units (not graphed): | 40 | 9.71% |
| Total Housing Units: | 412 | 100% |
| Single-Family Units: | 282 | 68.45% |
| Multi-Family Units: | 70 | 16.99% |
| Other Units: | 60 | 14.56% |
| Total Housing Units: | 412 | 100% |
In 2024, 4.00% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.70%). High school or higher is 39.10%, which is far lower than the national rate (89.60%). The uninsured rate is 12.90%, which is comparable to the national rate (8.40%). Private coverage is 13.10%, which is far lower than the national rate (67.10%). Public coverage is 77.20%, which is far higher than the national rate (36.70%). The share of people in poverty is 16.60%, which is comparable to the national rate (8.80%), down 19.90 percentage points since 2011 and below its 2019 pre-pandemic level by 20.20 percentage points. This points to a pronounced improvement in local conditions - rising incomes, firmer consumer demand, and a stronger tax base. Among residents ages 3+, the largest enrollment group is elementary (41.47%). College enrollment is 21.26%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 262 | 31.12% |
| 9th to 12th grade, no diploma: | 251 | 29.81% |
| High school graduate (includes equivalency): | 174 | 20.67% |
| Some college, no degree: | 86 | 10.21% |
| Associate's degree: | 35 | 4.16% |
| Bachelor's degree: | 30 | 3.56% |
| Graduate or professional degree: | 4 | 0.48% |
| Total: | 842 | 100% |
| High school or higher: | 329 | 39.07% |
| Bachelor's degree or higher: | 34 | 4.04% |
| Private Insurance: | 183 | 12.69% |
| Public Insurance: | 1,079 | 74.83% |
| No Insurance: | 180 | 12.48% |
| Total: | 1,442 | 100% |
| Has Health Insurance: | 1,262 | 87.52% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 37.7% | 42.1% | 55.7% | 53.6% | 53.6% | 49.4% | 49.1% | 41.9% | 38.0% | 37.5% | 25.9% | 19.0% | 17.8% | 16.6% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 12 | 3.15% |
| Kindergarten: | 13 | 3.41% |
| Elementary school (grades 1-8): | 158 | 41.47% |
| High school (grades 9-12): | 117 | 30.71% |
| College or graduate school: | 81 | 21.26% |
| Total: | 381 | 100% |
| Early Childhood: | 25 | 6.56% |
| K-12 (Primary & Secondary School): | 288 | 75.59% |
ZIP Code 93258 supports both business and residential activity. According to the Business Census (2024), there are 6 business establishments, employing about 708 people with an annual payroll of $34,839,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 10,118Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 6Source: CBP |
| 1st Quarter Payroll: | $6,712,000Source: CBP |
| Annual Payroll: | $34,839,000Source: CBP |
| # of Employees: | 708Source: CBP |
ZIP Code 93258 is located in Tulare County, California, within the Visalia, CA Metropolitan Statistical Area (CBSA 47300) and California's 22nd Congressional District. This Metro area has a population of 442,179 people, about 0.43% of whom live in ZIP Code 93258. It covers 0.975 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Visalia, CASource: Census |
| CBSA Number: | 47300Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 442,179Source: Census |
| MSA: | Visalia-Tulare-Porterville, CA MSASource: Census |
| Land Area: | 0.975 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | 22Source: USPS |
| Congressional Land Area: | 1165.12 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 0658240Source: Census |
| Place Name: | Porterville city; CaliforniaSource: Census |
We could not locate which school district 93258 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on February 1, 2026.