Squidward Tentacles is generally considered to be in his early 30s to early 50s, with many sources and fan discussions placing him around his early 40s. Some specific estimates put him at about 40 to 44 years old. This aligns with the idea that Squidward is older than SpongeBob, who is often cited as being around 30 years old (born in 1986), making Squidward likely born in the early 1970s (around 1972) and thus about 44 years old as of now

. In summary, Squidward's age is most commonly accepted to be in the early 40s range.