Common Core States 2026
Common Core Status
Adopted
Adopted with changes
Never adopted
Partially adopted
State | Common Core Status↓ | Year Common Core Was Adopted | Additional Common Core Details | |
|---|---|---|---|---|
 | California | Adopted | 2010 | |
 | Colorado | Adopted | 2010 | |
 | Connecticut | Adopted | 2010 |
|
 | Delaware | Adopted | 2010 | |
 | Hawaii | Adopted | 2010 | |
 | Idaho | Adopted | 2011 | |
 | Illinois | Adopted | 2010 | |
 | Iowa | Adopted | 2010 | |
 | Kansas | Adopted | 2010 |
|
 | Maine | Adopted | 2011 | |
 | Maryland | Adopted | 2010 | |
 | Michigan | Adopted | 2010 | |
 | Mississippi | Adopted | 2010 |
|
 | Montana | Adopted | 2011 | |
 | Nevada | Adopted | 2010 |
|
 | New Hampshire | Adopted | 2010 | |
 | New Jersey | Adopted | 2010 |
|
 | New Mexico | Adopted | 2010 | |
 | North Carolina | Adopted | 2010 | |
 | Ohio | Adopted | 2010 | |
 | Oregon | Adopted | 2010 | |
 | Pennsylvania | Adopted | 2010 |
|
 | Rhode Island | Adopted | 2010 | |
 | South Dakota | Adopted | 2010 | |
 | Tennessee | Adopted | 2010 |
|
 | Utah | Adopted | 2010 | |
 | Vermont | Adopted | 2010 | |
 | Washington | Adopted | 2011 | |
 | Wisconsin | Adopted | 2010 | |
 | Wyoming | Adopted | 2012 | |
 | Alabama | Adopted with changes | 2010 |
|
 | Arizona | Adopted with changes | 2010 |
|
 | Arkansas | Adopted with changes | 2010 |
|
 | Florida | Adopted with changes | 2010 |
|
 | Georgia | Adopted with changes | 2010 |
|
 | Indiana | Adopted with changes | 2010 |
|
 | Kentucky | Adopted with changes | 2010 |
|
 | Louisiana | Adopted with changes | 2011 |
|
 | Massachusetts | Adopted with changes | 2010 |
|
 | Missouri | Adopted with changes | 2010 |
|
 | New York | Adopted with changes | 2010 |
|
 | North Dakota | Adopted with changes | 2010 |
|
 | Oklahoma | Adopted with changes | 2010 |
|
 | South Carolina | Adopted with changes | 2010 |
|
 | West Virginia | Adopted with changes | 2010 |
|
 | Minnesota | Partially adopted | 2010 |
|
 | Alaska | Never adopted | ||
 | Nebraska | Never adopted | ||
 | Texas | Never adopted | ||
 | Virginia | Never adopted |
Common Core State Standards A set of K–12 academic benchmarks in mathematics and English language arts adopted by many U.S. states beginning in 2010.
Initial Adoption of Common Core Standards
Common Core State Standards spread quickly across the country beginning in 2010. In just a few years, most states signed on to the shared benchmarks in mathematics and English language arts, marking one of the most coordinated shifts in U.S. education policy in decades. The wave of adoption was especially concentrated in 2010 and 2011, when many states moved in the same direction at roughly the same time.
In total, 46 states adopted the standards in full or modified form during the initial rollout. That early momentum made Common Core the central framework guiding K–12 education standards nationwide, even though each state continued to control how the standards were implemented and later revised.
Evolution and Modification of Common Core Standards
After the first round of adoption, many states began adjusting the standards to better fit their own priorities. Some renamed them, others revised portions of the math or English language arts benchmarks, and a few replaced them with updated versions that still closely resemble the original framework. In practice, the changes often reflected local preferences rather than a complete departure from Common Core.
Today’s landscape is a mix of direct adoption and state-specific revisions. Only four states never adopted the standards at all, while several others modified them over time. Importantly, whether a state kept, renamed, or revised Common Core has not shown a consistent connection to its overall educational ranking. These shifts highlight the ongoing role states play in shaping their own academic standards even after joining a broader national initiative.
