DC may have the third highest average rents among US cities but at least rent hasn't gone up over the last six months. And this happened as the national average went up by 2.5%. Data released by Apartment List found that two-bedroom apartments in DC were down 1% in March. That comes out to a savings of more than $1k a year for your average two-bedroom apartment, data scientist Max Rosett told DC Inno. Of the city's 10 most expensive neighborhoods, nine now have a median two-bedroom rent above $3k per month. Meanwhile, Bethesda's average rent for two-bedrooms just barely edged out DC in March, although this could be a minor blip rather than a trend. All of DC's suburbs showed rents higher than the national average, with the highest prices being in Chinatown, Foggy Bottom and Georgetown. Lower rents were in Kingman Park and Trinidad. [DCInno]