What's in the Sioux City file
| Agents on file | 138 |
|---|---|
| Business addresses (real estate firms' own websites) | 7 |
| Email addresses in the file | 145 |
| Each email last read on a public page | Sep 16, 2026 to Oct 8, 2026 |
| Rows with a phone number | 97% |
| Rows on their own business domain | 38% |
| Rows on a free mailbox | 18% |
| Brokerage brands in the file | 6 |
| Other Iowa cities sold on their own | 13 |
| The whole file, one-time | $39 |
| The whole Iowa file, Sioux City included | $149 |
| Columns in every row | Name, Email, Phone, Brokerage, City, State, Data Source |
kw.com and c21prolink.com in Siouxland inboxes
Two domains anchor the Sioux City inboxes: kw.com on 59 rows and c21prolink.com on 43, of 145 in all.
gmail.com follows on 23 rows, and free mail of every kind reaches 26.
Nearly every row lists a phone: 97%.
8 Sioux City rows were new to our file in October 2026.
Sioux City brands run against the Iowa pattern
Sioux City turns the Iowa file upside down. RE/MAX holds 45% of branded agents statewide but 5% here, 7 agents.
Keller Williams, at 46% of branded Sioux City agents, runs at well over twice its 16% Iowa share.
Century 21 reaches 33% against 14% statewide, and CENTURY 21 ProLink is the company name on 45 Sioux City rows.
Coldwell Banker, a small brand in our Iowa file at 2%, is 12% here, where Coldwell Banker Associated Brokers Realty, Inc. is the company name on 17 rows.
Sioux City company groups on the Iowa side
Among Sioux City company groups, Keller Williams alone passes 50 agents, with 64.
CENTURY 21 ProLink sits just under that mark at 45 rows, so it is not drawn as a group on the map.
Agents with offices across the river in South Sioux City, Nebraska, or North Sioux City and Dakota Dunes, South Dakota, are not in this Iowa file; they sit in those states' files.
| Office | City | Agents on file |
|---|---|---|
| Keller Williams | Sioux City | 64 |
Sioux City agent offices in Woodbury County
