- Governor or Senate: 1% of voters in candidates party in each of at least 10 counties.
- State Elected Officer: 1000 signatures with at least 50 from each of the 10 counties
- U.S. Representative: 2% from at least 1/2 of the counties in the representative’s district.
- Senate: 100 signatures.
- State House: 50 signatures.
Iowa Code Section 362.4 provides statutes and referenda rights in charter cities by legislative referral only.