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Advertise here →Seis Lagos, TX · Market Data
Seis Lagos, Texas real estate market data.
Real estate market data for Seis Lagos, TX (Collin County) — Census median home value $636,400, county listing prices down about 1.8% over the past year.
Seis Lagos, TX is in Collin County, Texas — covering the whole local market here: resale homes, condos, land, and new construction. The most recent Census estimate puts the population at 1,160, with a median household income of $196,184. Census data puts Seis Lagos's median home value at $636,400 (all owner-occupied homes); Collin County's current median listing price runs $530,000, down about 1.8% over the past year.
At a glance
Seis Lagos market snapshot
Population
1,160
Median Household Income
$196,184
Median Home Value (city)
$636,400
Median Listing Price (Collin County)
$530,000
Median Gross Rent
$-666,666,666/mo
Price Trend (YoY)
-1.8%
Market data compiled from public sources; deemed reliable but not guaranteed; verify independently. Full source list ↗
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What makes Seis Lagos different
Home Value, By Source
The Census Bureau's American Community Survey (2023 5-year estimate) puts Seis Lagos's median home value — across all owner-occupied homes, not just recent sales — at $636,400. Separately, Collin County's current median listing price (via Realtor.com data, 2026-06-01) runs $530,000. These cover different geography (city vs. county) and different measures (assessed value vs. active listings), which is why we show both rather than picking one — full source list on our data sources page.
County Price Trend
Collin County's FHFA house price index shows a -0.75% annual change in 2025.
Population & Income
Seis Lagos has an estimated population of 1,160 and a median household income of $196,184, per the Census Bureau's American Community Survey (2023 5-year estimate).
Affordability Snapshot
Seis Lagos's Census-reported median home value works out to about 3.2x the area's median household income, and median gross rent runs roughly -4077805% of that same income on an annualized basis. Housing economists commonly flag a price-to-income ratio above 4x as historically elevated -- useful context, not a personal affordability verdict.
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Common questions
Seis Lagos FAQ
What are home values like in Seis Lagos, TX?
The Census Bureau's American Community Survey puts Seis Lagos's median home value at $636,400. Collin County's current median listing price runs $530,000, down about 1.8% over the past year.
What is the population of Seis Lagos, TX?
The U.S. Census Bureau's American Community Survey (2023 5-year estimate) puts Seis Lagos's population at approximately 1,160.
What's the median rent in Seis Lagos, TX?
The Census ACS estimates median gross rent in Seis Lagos at approximately $-666,666,666 per month.
What is the median household income in Seis Lagos, TX?
Census ACS data puts the median household income in Seis Lagos at approximately $196,184.
Is the Seis Lagos housing market growing?
Collin County's FHFA house price index shows a -0.75% annual change in 2025.
Is Seis Lagos, TX affordable relative to income?
Census ACS data puts Seis Lagos's median home value at about 3.2 times the median household income, with median gross rent equal to roughly -4077805% of that income annually. This is a general benchmark, not a personal pre-qualification -- your own income, debt, and down payment determine what you can actually afford.
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