To find the median, we first arrange the numbers in ascending order:
\[
180, 190, 210, 220, 230, 240, 250, 260.
\]
Since there are 8 numbers (an even number), the median is the average of the 4th and 5th numbers:
\[
\text{Median} = \frac{220 + 230}{2} = 225.
\]