Quick Fix: Always lowercase state unless it starts a sentence or is part of a proper title (e.g., State of New York). Use USPS-approved 2-letter codes without periods in addresses (e.g., CA, NY). Spell out state names in sentences as of 2026 per AP Stylebook updates.
What’s Happening
State stays lowercase in most cases, except at the start of a sentence or in official titles like “State of New York.”
You’ll rarely need to capitalize state in running text. The only exceptions? When it kicks off a sentence or shows up in a formal title. For addresses, the USPS wants two-letter codes without periods (CA, NY). Since May 2025, the AP Stylebook says to spell out state names in story bodies but keep abbreviations in datelines. Eight states never get abbreviated—Alaska, Hawaii, Idaho, Iowa, Maine, Ohio, Texas, and Utah.
Step-by-Step Solution
Follow these three simple steps to get state capitalization right every time
- Check position in sentence:
- Before a state name? → lowercase state (e.g., “the state of Michigan”).
- Starting a sentence? → capitalize State (e.g., “State officials announced...”).
- Part of an official title? → capitalize State (e.g., “State of New York”).
- Abbreviate only in addresses:
- Use the USPS-approved 2-letter code without a period.
- Examples:
State Code California CA New York NY Texas TX
- Follow AP Stylebook rules in body text:
- Spell out the full state name in sentences (e.g., “She lives in California”).
- Use abbreviations only in datelines (e.g., LOS ANGELES, Calif.).
If This Didn’t Work
Check these common edge cases when your state capitalization keeps failing
- Government vs. geographic: When referring to government entities (e.g., “state employees”), lowercase state. When referring to the place (e.g., “the state of Florida”), keep it lowercase per AP Stylebook.
- Collective references: In phrases like “the States,” capitalize States only when it means the United States collectively (e.g., “She returned to the States”). Otherwise, keep it lowercase (e.g., “Each of the states has its own flag”).
- Titles and headers: Capitalize State when it appears in a formal title (e.g., “State Senator Jane Doe”), but lowercase modifiers (e.g., “state regulations”).
Prevention Tips
Keep future documents error-free with these simple habits
- Style guide alignment: Bookmark the AP Stylebook online and check it before publishing any text involving state names.
- USPS address validation: Use the USPS ZIP Code Lookup Tool to confirm correct state codes in addresses.
- Consistency in lists: Choose either full names or codes for a document, and apply the rule uniformly to avoid mixed formatting.
- Training refresh: Since May 2025 updates, many style guides still in circulation may be outdated—verify your organization’s style sheet against the 2026 AP guidelines.
