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Costa Mesa · Property taxes

Property taxes in Costa Mesa

Property tax in Costa Mesa: the range of tax rates from the county's table, the levies behind it and the state rules, with a link to every source.

Key points

Tax rates in this area — county data The state rules underneath — state law Mills Act contracts for historic homes — Costa Mesa rule

Costa Mesa property tax: total rates 1.0513% to 1.1406% across 250 tax rate areas (FY 2026-27), the levies behind it and the Prop 13 rules, with the county source. The county sets and collects the tax.

Each block below is marked county or state data, Costa Mesa code or CA state law, and links to its source (checked October 2026). General information, not legal advice.

Tax rates in this area

County rate table The county lists 250 tax rate areas inside Costa Mesa for fiscal year 2026-27. Their total rate runs from 1.0513% to 1.1406% of assessed value.

The total is the 1% general tax (Proposition 13) plus the rates voters approved for school, city and other bonds. It does not include fixed charges such as Mello-Roos special taxes, parcel taxes or assessments, which come on the same bill.

What makes up the rate here: the levies in at least half of the 250 rate areas, as the county's table names them
LevyRateShare of rate areas
General tax (Prop 13)1%all
COAST CCD-EL2012 SER 2017D REF20220.0085%82%
METRO WATER DIST-MWDOC- 12059990.0085%69%
NEWPORT-MESA USD-EL2005 SER 2011 REF20170.0084%82%
COAST CCD-EL2002 SER 2006B REF2013A0.008%82%
NEWPORT-MESA USD-EL2005 SER 20070.0067%82%
COAST CCD-EL2012 SER 2013 A & B REF20190.0046%82%
NEWPORT-MESA USD-EL2005 SER 20170.0024%82%
COAST CCD-EL2002 SER 2006C REF20200.0022%82%

Your exact rate depends on your address. Look up the rate for an address → Source: Orange County rate table, fiscal year 2026-27.

The state rules underneath

CA state law California law sets this statewide. 1% property tax limit (Prop 13): The general property tax on real property may not exceed 1% of its full cash value; voter-approved bond debt is levied on top (Cal. Const. art. XIII A, § 1(a), (b)). 2% annual cap on assessed value: The base year value rises each year by the California CPI change, but never more than 2% (Rev. & Tax. Code § 51(a)(1)(D)). California property tax rules — the full state rule →

Mills Act contracts for historic homes

Costa Mesa code What Costa Mesa's code adds
Mills Act tax incentive
  • The city council may adopt a preservation incentives program that includes Mills Act contracts.
    § 13-200.11 · code text
    This program may include but is not limited to: (a) Mills Act contracts;

Who this affects

HomeownersBuyersReal estate agents

Frequently asked questions

What is the property tax rate in Costa Mesa?

The county lists 250 tax rate areas inside Costa Mesa for fiscal year 2026-27. Their total rate runs from 1.0513% to 1.1406% of assessed value. The exact rate depends on the address.

Does Costa Mesa offer Mills Act property tax contracts?

Costa Mesa's code: The city council may adopt a preservation incentives program that includes Mills Act contracts. (§ 13-200.11).

General information, not legal advice.

Ask about a specific Costa Mesa property

Ask GoCodebook how these rules apply to your address and get an answer that cites the section.

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