Updated: Women Governors by Time in Office

Update: Kate Brown has been Governor of Oregon for a little over 6 months so let's update list.  If the rumor mills in Alabama are true, we may see another woman become governor.
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It's International Women's Day.  So let's look at the women in the U.S.  Namely Governors.  The idea for a unique way of looking at the women who have served as governors came from BC Iconoclast in Canada.

First, a look at the 37 women who served as governor by their time in office through today.  Bold are currently serving:

Governor	State	Time in Office
Ruth Ann Minner	Delaware	2940 Days
Christine Gregoire	Washington	2927 Days
Linda Lingle	Hawaii	2927 Days
Jennifer Granholm	Michigan	2923 Days
Christine Todd Whitman	New Jersey	2571 Days
M. Jodi Rell	Connecticut	2380 Days
Kathleen Sebelius	Kansas	2298 Days
Janet Napolitano	Arizona	2208 Days
Madeleine Kunin	Vermont	2192 Days
Jeanne Shaheen	New Hampshire	2192 Days
Ella Grasso	Connecticut	2185 Days
Jan Brewer	Arizona	2176 Days
Jane Dee Hull	Arizona	1950 Days
Susana Martinez	New Mexico	1712 Days
Mary Fallin	Oklahoma	1703 Days
Nikki Haley	South Carolina	1701 Days
Kathleen Blanco	Louisiana	1464 Days
Judy Martz	Montana	1464 Days
Dixy Lee Ray	Washington	1464 Days
Ann Richards	Texas	1464 Days
Kay Orr	Nebraska	1462 Days
Martha Layne Collins	Kentucky	1457 Days
Miriam Ferguson	Texas	1457 Days
Joan Finney	Kansas	1457 Days
Barbara Roberts	Oregon	1457 Days
Beverly Perdue	North Carolina	1457 Days
Rose Mofford	Arizona	1123 Days
Maggie Hassan	New Hampshire	979 Days
Sarah Palin	Alaska	966 Days
Nellie Tayloe Ross	Wyoming	729 Days
Jane Swift	Massachusetts	633 Days
Lurleen Wallace	Alabama	478 Days
Olene Smith Walker	Utah	426 Days
Gina Raimondo	Rhode Island	246 Days
Kate Brown	Oregon	203 Days
Nancy Hollister	Ohio	12 Days
Vesta Roy	New Hampshire	8 Days

Looking at just how many days someone served doesn't tell the whole story.  Ruth Ann Minner may have been the longest serving governor, but how does serving as governor of Delaware compare with serving as governor of Michigan or Texas?

Another way we can look at this list is by their population when they took office multiplied by their days in office through today.  Those in bold are currently serving.

Governor	State	Total Governing Pop.	Time in Office
Jennifer Granholm	Michigan	29,463,796,155	2923 Days
Ann Richards	Texas	24,868,250,640	1464 Days
Christine Todd Whitman	New Jersey	20,359,224,516	2571 Days
Christine Gregoire	Washington	18,404,270,593	2927 Days
Jan Brewer	Arizona	14,352,412,928	2176 Days
Beverly Perdue	North Carolina	13,667,947,988	1457 Days
Janet Napolitano	Arizona	12,322,430,688	2208 Days
Jane Dee Hull	Arizona	8,876,803,650	1950 Days
M. Jodi Rell	Connecticut	8,338,577,520	2380 Days
Miriam Ferguson	Texas	8,265,902,000	1457 Days
Nikki Haley	South Carolina	7,867,778,184	1701 Days
Ella Grasso	Connecticut	6,735,262,500	2185 Days
Kathleen Blanco	Louisana	6,611,087,280	1464 Days
Mary Fallin	Oklahoma	3855753	1703 Days
Kathleen Sebelius	Kansas	6,258,619,086	2298 Days
Dixy Lee Ray	Washington	5,528,137,200	1464 Days
Martha Layne Collins	Kentucky	5,382,863,188	1457 Days
Barbara Roberts	Oregon	4,141,261,697	1457 Days
Rose Mofford	Arizona	3,970,010,509	1123 Days
Jane Swift	Massachusetts	3,808,397,025	633 Days
Linda Lingle	Hawaii	3,643,816,446	2927 Days
Joan Finney	Kansas	3,609,825,318	1457 Days
Susana Martinez	New Mexico	3,525,314,448	1712 Days
Jeanne Shaheen	New Hampshire	2,571,739,888	2192 Days
Ruth Ann Minner	Delaware	2,303,784,000	2940 Days
Kay Orr	Nebraska	2,290,291,714	1462 Days
Lurleen Wallace	Alabama	1,652,924,000	478 Days
Judy Martz	Montana	1,320,813,480	1464 Days
Maggie Hassan	New Hampshire	1,290,511,926	979 Days
Madeleine Kunin	Vermont	1,161,836,720	2192 Days
Olene Smith Walker	Utah	1,001,724,942	426 Days
Kate Brown	Oregon	805,958,517	203 Days
Sarah Palin	Alaska	647,271,198	966 Days
Gina Raimondo	Rhode Island	259,572,558	246 Days
Nellie Tayloe Ross	Wyoming	157,464,000	729 Days
Nancy Hollister	Ohio	134,853,024	12 Days
Vesta Roy	New Hampshire	7,581,752	8 Days

Some interesting things when broken down by population and time in office.  Ann Richards is #14 for time in office, but #2 when you factor in population.  Ruth Ann Minner is the longest serving but drops to #24 with the population factor.  Maggie Hassan has been governor for about 3 months, but look how far she has to go to overtake Nancy Hollister.

The population factor at the very least shows us that not all states are created equal.  Let's remember there are essentially 50 different economies.  Larger states are likely to have larger economies.

Just as an FYI, if Ann Richards had won re-election she would have easily taken the top spot when population is factored in, blowing past Jennifer Granholm with a population of 49,719,514,770.