The June Area survey is one of the largest annual NASS survey projects and provides significant utility for the entire NASS survey program. The data collected are used to supply direct estimates of acreage and measures of sampling coverage.
The June Area survey utilizes an area sampling frame. The area frame consists of all land, stratified by land use, in all states except Alaska. The primary sampling units (PSU), based on land area, provide complete coverage of all agriculture activity occurring on that land and, therefore, all operators in the state.
A sample of nearly 11,000 segments, smaller units of a PSU measuring roughly one square mile, is selected from each land use stratum for data collection. All farm operators operating within the boundaries of the selected segments are interviewed. In a given year, approximately 85,000 agricultural and non-agricultural land use tracts are identified within the sampled segments. From that identification, over 35,000 detailed personal interviews are conducted with farmers operating farms inside the segment boundaries or who have the potential to qualify as a farm.
Every five years, over 3,000 extra segments are sampled to supplement census coverage measures.
The June Area Survey provides direct estimates or is a component of data collection and estimation for the following publications: June Acreage, January and July Cattle Inventory, quarterly Agricultural Labor, September Small Grains Summary, January Crop Production Summary, quarterly Hog and Pig Inventory, January and July Sheep Inventory, August Farm Production Expenses, August Cash Rent and Land Values, and February Farms, Land in Farms, and Livestock Operations.
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The June Area Survey is designed to account for every acre of land, all agricultural activities, and land uses within segment boundaries. Crop acreage, grain stocks, cattle inventory, hog inventory, sheep inventory, poultry inventory, land values, cash rents, farm numbers, and value of sales data are collected. The diverse range of items is needed for direct estimation requirements and sample design needs for projects later in the survey year.
Modern agriculture increasingly calls upon NASS to supply reliable, timely, and detailed information. The wide range of crop, livestock, and economic statistics contained in these reports helps develop a stable economic atmosphere and reduces risk for production, marketing, and distribution operations. Economic data and statistics on rural America are becoming increasingly important. The June Area survey plays a critical role in these program areas.
The June Area survey is conducted annually.
Data collection for the June Area survey is completed entirely by personal interview during the first two weeks of June. Personal interviews must be conducted since operators within the selected segments are not known until significant screening is completed. Also, respondents must examine an aerial photograph to identify each field boundary and report the crop planted. Acreage data refer to the current crop year, while livestock and stocks data refer to June 1.
The June Area frame survey provides direct estimates for several projects and generates a unique population of respondents. Those operations which did not have the opportunity to be sampled from the list frame comprise the non-overlap (NOL) domain. The NOL domain, identified from this survey, is used as a sampling source to calculate an incompleteness measure for multiple frame estimates for no fewer than 19 major survey projects. This domain also provides NASS the ability to be responsive to the data needs of state and federal cooperators by ensuring complete sampling coverage for reimbursable survey projects. The detailed crop acreage data are also used as a sampling source for several of the Objective Yield Surveys.
The June Area survey provides Aground truth@ for several remote sensing projects and Geographic Information System research and products and supports other research projects.
Hog and Pig Inventory
Sheep and Goat Inventory
Agricultural Resource Management
Census of Agriculture
Last modified: 11/17/09
Remotely Sensed Data
- C-FARE Review of the Agricultural Prices Program
- C-FARE Review of the 2002 Census of Agriculture
- Evaluation of Selected USDA WAOB and NASS Forecasts and Estimates in Corn and Soybeans
Agricultural Resource Mgmt.