ZIP Code · TX

ZIP 78155

Part of Seguin, TX

Pop. 55,600·Guadalupe County·461st most expensive ZIP in Texas

Median rent (all units)

$1,429/mo

Year-over-Year

+2.0%

Month-over-Month

Stable

vs US Median

-$503

Reported rents

Stable (Monthly)

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Most AffordableMost Expensive

ZIP 78155 · $1,429

More affordable than 78% of US ZIP codes · National median $1,932/mo

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Medians by bedroom

Rent by unit size

Studio

$950

1 BR

$1,040

2 BR

$1,260

3 BR

$1,620

4 BR+

$1,880

Research median

$1,260/mo

Bedroom estimates are gross rents that include essential utilities (electricity, water, gas, sewer, trash).

Rent trends

12-month history

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Last updated: October 17, 2026

From the history

What the numbers show

Compared with the peak

Rent in ZIP 78155 is 2.3% below its high of $1,463 in April 2024, at $1,429 as of September 2026.

Past year vs. the rest of Texas

Rent in ZIP 78155 changed +2.0% over the year to September 2026. Across the 629 Texas ZIP codes Zillow tracks, the typical change was +1.2%.

Recent direction

Rent has risen 4 months in a row, and rose in 9 of the last 12 months.

What a typical income covers

30% of the median household income ($71,039) is $1,776 a month. That covers HUD's Fair Market Rent for up to a 3-bedroom ($1,620); a 4-bedroom is $1,880.

From Zillow's monthly rent index (ZORI) for ZIP 78155. Income is the Census median household income (5-year estimates). Fair Market Rents are HUD’s, which include utilities.

Annual cost

$17,148/yr

At $1,429/mo median

Location

CitySeguin

StateTX

CountyGuadalupe County

Rent Market Meter

Landlord's Market

Renter's MarketBalancedLandlord's Market

Rents are climbing (2.0% YoY), so leverage tilts toward landlords. Act sooner rather than later.

Based on rent-price momentum (+2.0% YoY, +0.1% MoM), not inventory.

Demographics

Who lives here

ZIP 78155 (Seguin, TX) is majority owner-occupied, 21.7% of residents hold a bachelor's degree or higher.

Population

55,600

Median income

$71,039

Median age

39.4

Renters

27.5%

Age distribution

21.8%

22.1%

25.4%

12.9%

17.9%

Under 1821.8%

18–3422.1%

35–5425.4%

55–6412.9%

65+17.9%

Gender

50.1%

49.9%

Male50.1%

Female49.9%

Race & ethnicity

51.5%

50.1%

White51.5%

Black4.9%

Hispanic50.1%

Asian0.7%

Education (25+)

14%

37.3%

27%

21.7%

No HS diploma14%

HS diploma37.3%

Some college27%

Bachelor's+21.7%

Housing tenure

72.5%

27.5%

Owner72.5%

Renter27.5%

Source: U.S. Census Bureau · ACS 2024 5-Year Estimates

2023 vs 2026

How ZIP 78155 in Seguin, TX has changed in 5 years

Rent

$1,429 → $1,429

up 0.0%

Income

$62,243 → $71,039

up 14.1%

Population

51,656 → 55,600

up 7.6%

Renter share

28.8% → 27.5%

-1.3 pts

Bachelor's+

19% → 21.7%

+2.7 pts

Median age

37.8 → 39.4

+1.6 yrs

Rent in ZIP 78155 in Seguin, TX has climbed 0.0% since 2023, going from about $1,429 per month to roughly $1,429 today. On the earnings side, the typical household in ZIP 78155 in Seguin, TX now reports about $71,039, up from $62,243 in 2021. Income growth outran rent by about 14.1 percentage points, easing the affordability math somewhat compared with 2021. Headcount in the area went from 51,656 to 55,600 between 2021 and 2024, a 7.6% change. Educational attainment has shifted as well, with the share of adults holding a bachelor's degree or higher climbed from 19% to 21.7%. For context, the 2023 to 2026 window covers an unusually volatile run for US rents nationally, and ZIP 78155 in Seguin, TX reflects that arc in its own way.

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About renting in ZIP 78155

Last updated: October 17, 2026

ZIP code 78155 covers Seguin, TX. The median rent here is $1,429/mo as of October 2026. A 1-bedroom rents for a median of $1,040/mo. A 2-bedroom rents for a median of $1,260/mo.

At 24% of local median household income ($71,039/yr), ZIP 78155 ranks as affordable compared to the national benchmark of 30%. Rents have increased 2.0% over the past year.

FAQ

Frequently asked questions

How much income do you need to rent in ZIP 78155?

To keep rent at or below 30% of gross income, you would need to earn at least $57,000/year (about $27/hour full-time) to afford the median rent of $1,429/mo in ZIP 78155. The local median household income is $71,039/yr, so the typical household meets that bar.

Is rent going up or down in ZIP 78155?

Rent in ZIP 78155 has risen 2.0% over the past year as of September 2026. It sits 2.3% below its high of $1,463 in April 2024.

How does ZIP 78155 compare to other ZIPs in Texas?

ZIP 78155 is in the middle among Texas ZIP codes for rent, ranking #461 of 693 at $1,429/mo. Over the year to September 2026, rent in ZIP 78155 changed +2.0%, against a typical +1.2% across the 629 Texas ZIP codes Zillow tracks.