EXHIBIT 21 SUBSIDIARIES OF THE REGISTRANT December 31, 2002 REDWOOD EMPIRE BANCORP (REB) Santa Rosa, California a California corporation | | | | --------------------------------------------------------- | | | | | | Redwood Statutory Trust I National Bank of the Redwoods ------------------------- ----------------------------- Santa Rosa, California Santa Rosa, California a Connecticut statutory trust a national bank Owned 100% by REB Owned 100% by REB | | ----------------- | | | | | --------------------------------------------------------------------------------------- | | | | | | | | | | | | | | | | | | | | Valley Financial Redwood Merchant | NBR Real Estate Mortgage Corporation Services, Inc Allied Diversified Credit Investment Trust -------------------- ---------------- ------------------------- ---------------- Santa Rosa, California Santa Rosa, California Santa Rosa, California Santa Rosa, California a California corporation a California corporation a California corporation a Maryland corporation (dba Santa Rosa Mortgage Owned 100% by NBR Owned 100% by NBR Owned 100% by NBR and Investment Company) Inactive Inactive Owned 100% by NBR Inactive