Harlingen, Texas: Rio Grande Valley farmland and agriculture

City almanac

Ag Services in Harlingen, Texas

Texas · United States

  • Region

    Rio Grande Valley

  • USDA zone

    9b

  • Services

    0

  • Providers

    0

Local Farm and Ag Service Providers Across Harlingen and Cameron County

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Local context

Ag Services Harlingen • Cotton & Sorghum Work • Rio Grande Valley Field Services

Harlingen sits in Cameron County, where 1,248 farms work 208,701 acres, including 71,133 irrigated acres, about 34 percent of all land in farms. County farms sold $128.8 million of agricultural products in 2022, and crops accounted for 97 percent of those sales, making this overwhelmingly a row crop and orchard economy rather than a livestock one.

Cotton in the Lower Rio Grande Valley is planted from February through March and harvested from August through September, the earliest window of any Texas cotton region, and roughly 40 percent of Valley cotton acreage is irrigated. Harlingen Irrigation District Cameron County No. 1 covers 56,114 acres and delivers Rio Grande water sourced through Falcon Reservoir via 40 miles of earthen canal, 17 miles of lined canal, and more than 200 miles of pipeline to 3,309 irrigation accounts.

Agnomy connects Harlingen-area growers with verified local service providers who understand early Valley planting and harvest windows, irrigation district coordination, and citrus grove work, making it easier to find, book, and manage the services your operation depends on.

Answers for growers

Harlingen questions

What growers in the area ask before they book on Agnomy.

  • What makes Harlingen unique for agricultural services?
    The Lower Rio Grande Valley runs the earliest cotton window in Texas, planted February through March and harvested August through September. Cameron County is 97 percent crop sales by value, and irrigation and water management stay in demand year round because Rio Grande allocations are unreliable.
  • Which crops are most common around Harlingen?
    The Harlingen area grows cotton, grain sorghum, citrus including grapefruit and oranges, corn, vegetables and melons, sunflowers, and hay and forage.
  • Is sugarcane still grown and milled around Harlingen?
    Sugarcane is no longer milled in Texas. Rio Grande Valley Sugar Growers permanently closed the Santa Rosa mill, the state's only sugar mill, in February 2024 after 51 years, citing Mexico's shortfalls under the 1944 Water Treaty. In September 2025 a TDA-backed partnership signed to acquire the mill's assets under a plan that targets a relaunch in its 2026 to 2028 phase.
  • When is demand for services highest?
    Demand peaks twice: land prep, planting, and herbicide work from January through March when grain sorghum and then cotton go in, and again from late June through September for sorghum and cotton harvest. Citrus grove work and hauling run from October through April.

Harlingen Farm and Agricultural Support for Local Growers

The Earliest Cotton Harvest Window in Texas

Crops at 97 Percent of All County Farm Sales

Rio Grande Water Across 3,309 Irrigation Accounts

Fifth in Texas for Fruit, Tree Nut, and Berry Sales

Local Agriculture Resources in Harlingen

Texas A&M AgriLife Extension Service, Cameron County

County Extension office in San Benito running row crop variety trials, quarterly private pesticide applicator license training, and irrigation and pest management programs for cotton, sorghum, and citrus growers.

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Southmost Soil and Water Conservation District #319

State chartered conservation district in San Benito, sharing an office with the NRCS service center, that helps Cameron County landowners plan erosion control and irrigation efficiency practices.

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Harlingen Irrigation District Cameron County No. 1

The irrigation district serving Harlingen farmland, delivering Rio Grande water to about 38,000 irrigated acres through canals and pipelines while also providing drainage, flood control, and municipal supply.

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Texas Citrus Mutual

Mission based trade association founded in 1958 that represents Rio Grande Valley citrus growers on water supply, property taxes, and pesticide registration, and coordinates blackfly and rust mite control.

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