Christy, it depends on where you go. I'd guess the average stipend is about $25K, which is very little pay given what's expected of a resident chaplain. You'll be expected to give 50-60 hours weekly to the position, including at least two 24-hour on call shifts monthly.
Professional chaplaincy, OTOH, pays anywhere from $17-$30 hourly. The main issue is, most places aren't looking for FT chaplains, but PRN (per request, as needed). Also, the best places will expect you to be board certified already before you start, though many expect only eligibility for board certification.
I'd choose a residency in a community that has a decent cost of living. I attended seminary in Chicago, but don't ever consider a residency there - they all pay around $23K, which is ludicrous considering how expensive Chicago is. Bronson Methodist in Kalamazoo pays $24K, has great supervisors and K-Zoo is a relatively low cost of living. Gundersen Lutheran up in LaCrosse has an excellent supervisor, and I think they pay around $26K in an affordable city.