As of October 12, 2026, ListRiver's records show 2,621 active registered businesses in Washington County, Iowa, the 19th most among Iowa counties. 70% are LLCs. 17 were formed in September 2026. That is 1% of all Iowa businesses on record.
How many businesses are registered in Washington County, Iowa?
ListRiver has 2,621 active registered businesses in Washington County, Iowa on record as of October 12, 2026, from official Iowa business registry data. Dissolved and defunct businesses are not counted.
How many new businesses were formed in Washington County, Iowa in September 2026?
17 businesses on record in Washington County, Iowa were formed in September 2026.
How many new businesses opened in Washington County, Iowa in the last 12 months?
253 businesses on record in Washington County, Iowa were formed in the 12 months through September 2026.
What is the most common type of business in Washington County, Iowa?
LLCs are the most common: 1,841 of 2,621 businesses on record (70%), followed by Corporations with 482 (18%).
Where does this data come from?
From Iowa's official business registry. ListRiver loads each new state file, standardizes it, removes duplicates and updates its database weekly. Email and industry details are added from SMBCredit.net where available.
How do I get a list of businesses in Washington County, Iowa?
Use ListRiver's list builder to filter Washington County, Iowa businesses by entity type, formation date, industry and contact details, see the exact count and price, and download a CSV. Every list includes monthly refresh files.
Free to use on any site, and it updates itself every month. Copy this code and paste it into your page. Preview the chart.
Counts come from official Iowa business registry records on file with ListRiver, current as of October 12, 2026. They include businesses that are active on the state register; dissolved and defunct entities are excluded. Contact details are added from SMBCredit.net where available. Formation months reflect the registration date the state reports. See the methodology for sources, update schedules and known limits.