Need to Find a notary in Waterloo, Iowa? Search the list of notaries here. ZigSig is a notary scheduling platform for real estate professionals. We have 15 notaries in an around Waterloo, Iowa. Notaries in Waterloo are based out of the following zip codes: Check notaries experience with lifetime signings total along with customer feedback. All notaries will show badges for commission, bond, E&O and background check.