Clue Analysis
If you’ve landed here for the “Contra ___ (county whose seat is Martinez)” clue from the December 5 2025, Washington Post mini crossword, you are in the exact right place. Our team of experts has solved today’s entire puzzle and found the precise answer for this clue.
The 5-letter answer to this puzzle is COSTA. Costa is a Spanish word meaning 'coast' or 'shore.'
The clue refers to Contra Costa County, a region in California. Martinez is the county seat of Contra Costa, making 'COSTA' the correct completion of the phrase 'Contra ___.'
You can find all the solutions for today’s puzzle, as well as answers from previous days, on our main Washington Post Mini Crossword Answers Today page.
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