This filtered view presents Real Gross Domestic Product for the construction sector in the State of Iowa by year beginning in 1997.

Gross domestic product (GDP) is the measure of the market value of all final goods and services produced within Iowa in a particular period of time. In concept, an industry's GDP by state, referred to as its "value added", is equivalent to its gross output (sales or receipts and other operating income, commodity taxes, and inventory change) minus its intermediate inputs (consumption of goods and services purchased from other U.S. industries or imported). The Iowa GDP a state counterpart to the Nation's GDP, the Bureau's featured and most comprehensive measure of U.S. economic activity. Iowa GDP differs from national GDP for the following reasons: Iowa GDP excludes and national GDP includes the compensation of federal civilian and military personnel stationed abroad and government consumption of fixed capital for military structures located abroad and for military equipment, except office equipment; and Iowa GDP and national GDP have different revision schedules. GDP is reported in millions of current dollars.

Real GDP is an inflation-adjusted measure of Iowa's gross product that is based on national prices for the goods and services produced within Iowa. The real estimates of gross domestic product (GDP) are measured in millions of chained dollars, but have been multiplied by 1,000,000 to display in dollars for visualization purposes. Values are only accurate to the nearest $100,000.

This list provides data on all individual contractors and businesses performing "Construction" work within Iowa who have active registrations. Individuals contractors and business must register and renew annually if earning at least $2,000.00 a year from construction.
IWD uses the North America Industry Classification System (NAICS) to determine which employers will be classified as construction. The full definition of construction employer can be found in 871 Iowa Administrative Code 23.82.
Primary activities for construction based on NAICS categories include the following:

• 230000 - Other/Undefined
• 236115 - New Single-Family Housing Construction
• 236116 - New Multifamily Housing Construction
• 236117 - New Housing For-Sale Builders
• 236118 - Residential Remodelers
• 236210 - Industrial Building Construction
• 236220 - Commercial & Institutional Bldg Construction
• 237110 - Water/Sewer Line Construction
• 237120 - Oil/Gas Pipeline Construction
• 237130 - Power/Communication Line Construction
• 237210 - Land Subdivision
• 237310 - Highway/Street and Bridge Construction
• 237990 - Other Heavy/Civil Engineering
• 238110 - Poured Concrete Foundation Contractors
• 238120 - Structural Steel/Precast Concrete Contractors
• 238130 - Framing Contractors
• 238140 - Masonry Contractors
• 238150 - Glass and Glazing Contractors
• 238160 - Roofing Contractors
• 238170 - Siding Contractors
• 238190 - Other Foundation/Structure & Bldg Exterior
• 238210 - Electrical and Wiring Installation
• 238220 - Plumbing/Heating & A/C Contractors
• 238290 - Other Building Equipment Contractors
• 238310 - Drywall & Insulation Contractors
• 238320 - Painting & Wall Covering Contractors
• 238330 - Flooring Contractors
• 238340 - Tile/Terrazzo Contractors
• 238350 - Finish Carpentry Contractors
• 238390 - Other Building Finishing Contractors
• 238910 - Site Preparation Contractors
• 238990 - All Other Specialty Trade Contractors

General permit #2 for storm water discharges associated with industrial activity for Construction Activities in Iowa for the National Pollutant Discharge Elimination System (NPDES) program.