How big is the average alfalfa & hay operation in Oregon?

USDA's 2022 Census of Agriculture reports about 129 harvested acres of alfalfa & hay per operation in Oregon, averaged across 2,775 farms (358,904 acres total).

Is average operation size the same as field size?

No — and it's the most common mix-up. The 129-acre figure is the average alfalfa & hay acreage per farm; most farms split that across several fields, so a single field is typically smaller. For a real field boundary, trace it on satellite with the field mapper.

How much does it cost to spray a 129-acre alfalfa & hay field by drone in Oregon?

Roughly $1,643–$2,528 for a single application (about $13–$20/acre, application only — product is extra). Extra passes, higher carrier volume, or restricted-use products raise it. Use the calculator above to adjust.

How do I measure my exact alfalfa & hay field?

Open the field mapper, trace your field on satellite imagery, and you'll get its exact acreage, an instant Oregon cost estimate, and free quotes from drone operators serving your area — no app to install.

Average alfalfa & hay field size in Oregon

How big a typical Oregon alfalfa & hay operation is, what it costs to spray a field that size by drone, and how to measure your own.

Quick answer: The average Oregon alfalfa & hay operation harvests about 129 acres of alfalfa & hay (USDA Census of Agriculture 2022, 2,775 operations). Drone-spraying a field that size runs roughly $1,643–$2,528 for one pass (about $13–$20/acre). It's an average across whole operations, so an individual field is usually smaller — map your actual field for an exact number and free quotes.

Average alfalfa & hay per operation · Oregon

129 acres

USDA Census of Agriculture 2022 · 2,775 operations · 358,904 acres of alfalfa & hay total. This is the average across whole operations — a single field is usually smaller, since most farms are split into several fields.

Cost to spray a 129-acre alfalfa & hay field

Pre-filled to Oregon’s average alfalfa & hay acreage — adjust the acres, passes, carrier volume, or restricted-use toggle for your job.

State

Oregon

CropAcres

Gallons per acre (carrier volume)Restricted-use pesticide (certified applicator + records)

Estimated cost in Oregon

$1,643–$2,528

$13–$20/acre × 129 acres

Get real quotes in Oregon

What’s driving this

Oregon base rate: $13–$20/acre (row crop)
Crop: ×0.98
Gallons per acre: 2 GPA → ×1.00

Application only — product & chemical extra.

Sources & how this is estimated

Estimate only — actual rates vary by field size, terrain, and product. Application only; product/chemical extra. Data as of 2025.

Sources: US Ag Drone Directory pricing — Pacific Northwest (WA/OR/ID) $14-20/ac, row crops low end, orchards/vineyards high end; GroDrones — Willamette Valley OR operator (vineyards, orchards, nurseries, pasture; quote-based); nuWay Ag Oregon — drone spraying for sloped terrain & specialty crops

Drone-spraying cost by field size in Oregon

Field size	Cost per application
40 acres	$510–$784
80 acres	$1,019–$1,568
129 acresOR average	$1,643–$2,528
160 acres	$2,038–$3,136
320 acres	$4,077–$6,272
640 acres	$8,154–$12,544

Single application, application only (product/chemical extra). Carrier volume ≈ 2–3 GPA; typical passes 1+ between cuttings (weevil, aphid). Estimates — request quotes for exact pricing.

Measure your actual alfalfa & hay field

Averages are a planning starting point — your field is its own size. The field mapper turns satellite imagery into exact acreage in four steps:

Open the field mapper. Go to the Ag Drone Sprayers field mapper and search your address in Oregon or pan the satellite map to your field.
Trace the boundary. Tap each corner of your field to drop pins; the tool closes the polygon and computes geodesic acreage.
Read acreage and cost. See your field's exact acreage and an instant drone-spraying cost estimate for alfalfa & hay in Oregon.
Request free quotes. Send your mapped field to drone operators serving Oregon to receive real, no-obligation quotes.

Measure my field on satellite

Sources & method

Field size: USDA Census of Agriculture 2022 — average acres of alfalfa & hay per operation (358,904 acres ÷ 2,775 operations). Average acres per operation is a proxy for typical field size; a farm usually contains several fields. Cost: researched per-acre drone-spraying rates for Oregon (application only).

USDA NASS — Census of Agriculture

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Field size & cost in Oregon

Wheat field size Orchards field size Vineyards field size Alfalfa & Hay spraying cost in Oregon All Oregon field sizes

Alfalfa & Hay field size in Oregon: FAQs

How big is the average alfalfa & hay operation in Oregon?: USDA's 2022 Census of Agriculture reports about 129 harvested acres of alfalfa & hay per operation in Oregon, averaged across 2,775 farms (358,904 acres total).
Is average operation size the same as field size?: No — and it's the most common mix-up. The 129-acre figure is the average alfalfa & hay acreage per farm; most farms split that across several fields, so a single field is typically smaller. For a real field boundary, trace it on satellite with the field mapper.
How much does it cost to spray a 129-acre alfalfa & hay field by drone in Oregon?: Roughly $1,643–$2,528 for a single application (about $13–$20/acre, application only — product is extra). Extra passes, higher carrier volume, or restricted-use products raise it. Use the calculator above to adjust.
How do I measure my exact alfalfa & hay field?: Open the field mapper, trace your field on satellite imagery, and you'll get its exact acreage, an instant Oregon cost estimate, and free quotes from drone operators serving your area — no app to install.