PlainZIP

San Isidro, TX

Single-footprint Census roll-up for San Isidro, TX: 1 USPS ZIP, population 238. Open the primary ZIP for household income, housing tenure, and commute from ACS 2023 5-Year Estimates.

U.S. Census Bureau, SimpleMaps US ZIP Code Database, delivery-area ZIP coverage

ACS city ledger plate

Sheet SAN-ISIDRO-TX · San Isidro, TX 1 ZIPs · 238 pop · #5354/25278 · Starr County

INC-HIGH · RANK-UPPER · ABOVE-PEER · BOOK-ONE · OWN-MID · POP-VILLAGE · SPREAD-UNK · HOME-LOW

  • INC-HIGH $94,821
  • RANK-UPPER #5354/25278
  • ABOVE-PEER over Rio Grande City
  • BOOK-ONE 1 ZIP
  • OWN-MID 66% owners
  • POP-VILLAGE 238
  • SPREAD-UNK Single-ZIP book
  • HOME-LOW $52,800

Nearest income peer: Rio Grande City, TX ( $52,195 income $)

Instrument codes from this city’s ACS household income, national rank, county-peer gap, ZIP book, owner tenure, population scale, intra-city income spread, and home-value band, not a moving recommendation.

Income neighbourhood around San Isidro

Lowest/highest poles plus county-sharing cities nearest San Isidro on average ZIP median household income. Full ladder: /cities.

median HH income

What this shows County-sharing peers only, not the full US city board. Open a near peer when the gap is small; open the poles when the mosaic is wide.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2026-08-25

National city placement

According to ACS 5-Year Estimates, San Isidro, TX sits among US cities with an upper-quartile household income, on a village-scale population base, across a single-ZIP footprint.

Top 21%
household income vs 25,278 US cities
238
city population (Census)
1
USPS ZIP codes covered
$94,821
avg ZIP median income

Income percentile ranks this city's average ZIP median household income against 25,278 US cities with ACS income on at least one ZIP. Scale and ZIP-spread words come from Census population and USPS ZIP coverage.

High-income footprint on only 1 ZIP: the city page and the ZIP page nearly coincide. Headline income $94,821 and home value $52,800 should be read as near-neighborhood numbers ; bachelor's attainment averages 28.8%.

Owner-occupancy sits in a mixed band (65.7%) - check the ZIP page's tenure split before treating San Isidro as a pure owner town.

Within Texas, Blanco is the closest lower-income city and Palmer the closest higher-income city by average ZIP household income. Their 1 and 1 ZIP footprints are the immediate statewide comparison set for San Isidro.

Population concentration

San Isidro's single ZIP 78588 carries the town

San Isidro is published as a single USPS ZIP. Code 78588 is the entire residential footprint (238 ACS residents), so the city page and the ZIP page tell the same household story, open that ZIP for income, tenure, and commute detail.

Census ZBP business roll-up

Dense ZBP book packed into San Isidro's one ZIP

Citywide ZBP: 6 establishments, 24 employees , annual payroll $1,396k (~25 establishments per 1,000 residents) across 1 of 1 ZIPs. Peak business ZIP 78588 (6 units) .

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ZIP Codes in San Isidro, TX

These ZIP codes sit in Starr County, which covers 8 ZIP codes in all; 1 of them fall in San Isidro. See the Starr County roll-up →

No other city sharing Starr County reports a higher average ZIP median income than San Isidro. Rio Grande City, Roma and Grulla sit below it, so a household comparing this county on income alone starts here. Falcon Heights marks the far end of that range at $24,550, 74% below San Isidro.

ZIP Code Population Median income Establishments Density
78588 238 $94,821 6 2
How we build city roll-ups · Guide: reading ZIP code data · BLS wages

San Isidro roll-ups here are for informational purposes only and do not constitute financial or relocation advice. ACS and Census ZBP figures are estimates; confirm the current table against Census before a money or move decision involving San Isidro, .