Salt Gap is an unincorporated community in western McCulloch County, Texas, situated at the junction of Farm-to-Market Roads 503 and 504. The settlement takes its name from Salt Creek, a natural watercourse in the area that influenced local geography and land use.
The community’s development is tied to the establishment of its post office in 1905, which marked Salt Gap as a recognizable local hub. For small rural communities in Texas, the opening of a post office often signaled both permanence and importance, connecting isolated ranches and farms to the wider region.
Post Office History
The Salt Gap post office operated in two distinct periods:
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1905 to 1913 – Its first era of operation, serving ranching families and nearby farms.
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1924 to after 1930 – A reestablishment reflecting renewed local activity.
The final closure occurred sometime after 1930, and since then residents have relied on nearby towns for postal services.
Community Life in the 1930s
By the mid-1930s, Salt Gap had developed into a modest rural center. Records describe a community with:
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A school
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A cotton gin
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A gristmill
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Two stores
These institutions reflect the agricultural character of the area, which was focused on cotton farming and local trade.
Population Trends
Like many small Texas communities, Salt Gap experienced modest growth followed by long-term decline:
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1939: Population reached its peak at about 60 residents.
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1990 & 2000: Census reports list the community with just 25 residents.
This decline was typical of rural communities in Texas as agricultural mechanization, consolidation of farms, and the closure of small schools reduced the need for population centers like Salt Gap.
Salt Gap Today

Salt Gap remains an unincorporated rural settlement. While its population has never fully disappeared, it has remained small, and the community functions more as a geographic reference point than an active town. Its identity is tied to its location at the crossroads of FM 503 and FM 504, where it continues to appear on modern maps of McCulloch County.
Summary
Salt Gap stands as a small reminder of the early 20th-century settlement patterns in Texas. Founded with the arrival of its post office in 1905, it supported a modest population and basic agricultural services by the 1930s, peaking at 60 residents in 1939. Today, with only about 25 residents, it reflects the broader story of many rural Texas communities—once essential local hubs that gradually declined as the state’s economy and demographics shifted.
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McCulloch County
Texas
United States
- Likely yes—including on-leash roadside walks; always ask permission if entering private property
- Scenic drive, rural photography, exploring early 20th‑century take on farm communities
- None