You might want a roommate.
http://roommates.com
Median gross rent in 2005: $1,075.
Rent paid by renters in 2000 in Boston:
Less than $100: 3590 (number of apartments)
$100 to $149: 5672
$150 to $199: 9809
$200 to $249: 5465
$250 to $299: 4697
$300 to $349: 3919
$350 to $399: 3082
$400 to $449: 5114
$450 to $499: 3840
$500 to $549: 6988
$550 to $599: 5379
$600 to $649: 9853
$650 to $699: 8078
$700 to $749: 9050
$750 to $799: 8033
$800 to $899: 15859
$900 to $999: 11554
$1,000 to $1,249: 17681
$1,250 to $1,499: 9062
$1,500 to $1,999: 8813
$2,000 or more: 3566 (number of apartments)
No cash rent: 3014
You can read about cost of living for Boston and other cities and zip codes on the census and at city-data.com.
http://www.city-data.com/housing/houses-Boston-Massachusetts.html
http://www.city-data.com/city/Boston-Massachusetts.html
This is a map of local median rents.
http://factfinder.census.gov/servlet/ThematicMapFramesetServlet?_bm=y&-tree_id=403&-_MapEvent=zoom&-context=tm&-errMsg=&-_useSS=N&-all_geo_types=N&-_dBy=060&-redoLog=false&-_zoomLevel=6&-tm_name=DEC_2000_SF3_U_M00025&-ds_label=Census%202000%20Summary%20File%203%20(SF%203)%20-%20Sample%20Data&-tm_config=|b=50|l=en|t=403|zf=0.0|ms=thm_def|dw=0.4059938129615691|dh=0.22713288188657324|dt=gov.census.aff.domain.map.EnglishMapExtent|if=gif|cx=-71.15124807619648|cy=42.310995000000005|zl=5|pz=5|bo=|bl=|ft=350:349:335:389:388:332:331|fl=403:381:204:380:369:379:368|g=38500US11221120|ds=DEC_2000_SF3_U|sb=50|tud=false|db=060|mn=391|mx=1400|cc=1|cm=1|cn=5|cb=|um=Dollars|pr=0|th=DEC_2000_SF3_U_M00025|sf=N|sg=&-PANEL_ID=tm_result&-_pageY=&-_lang=en&-_pageX=&-geo_id=38500US11221120&-CONTEXT=tm&-_mapY=&-_mapX=&-_latitude=&-format=&-_pan=&-ds_name=DEC_2000_SF3_U&-_longitude=&-_changeMap=Identify
Places with lower unemployment are probably quieter at night.
This is a map of local unemployment rates.
http://factfinder.census.gov/servlet/ThematicMapFramesetServlet?_bm=y&-context=tm&-PANEL_ID=tm_result&-ds_label=Census%202000%20Summary%20File%203%20(SF%203)%20-%20Sample%20Data&-tm_name=DEC_2000_SF3_U_M00067&-ds_name=DEC_2000_SF3_U&-tm_config=|b=50|l=en|t=403|zf=0.0|ms=thm_def|dw=1.2179814388847072|dh=0.6715233029689991|dt=gov.census.aff.domain.map.EnglishMapExtent|if=gif|cx=-71.15124807619648|cy=42.310995000000005|zl=6|pz=6|bo=|bl=|ft=350:349:335:389:388:332:331|fl=403:381:204:380:369:379:368|g=38500US11221120|ds=DEC_2000_SF3_U|sb=50|tud=false|db=060|mn=0.3|mx=32.3|cc=1|cm=1|cn=5|cb=|um=Percent|pr=1|th=DEC_2000_SF3_U_M00177|sf=N|sg=&-CONTEXT=tm&-tree_id=403&-errMsg=&-redoLog=false&-all_geo_types=N&-geo_id=38500US11221120&-format=&-_lang=en
You can read about transportation at amtrak.com and mbta.com.
http://www.mbta.com/schedules_and_maps/system_map/
http://www.amtrak.com/servlet/ContentServer?pagename=Amtrak/HomePage
This is a map of local popularity of public transportation.
http://factfinder.census.gov/servlet/ThematicMapFramesetServlet?_bm=y&-context=tm&-PANEL_ID=tm_result&-ds_label=Census%202000%20Summary%20File%203%20(SF%203)%20-%20Sample%20Data&-tm_name=DEC_2000_SF3_U_M00177&-ds_name=DEC_2000_SF3_U&-tm_config=|b=50|l=en|t=403|zf=0.0|ms=thm_def|dw=1.2179814388847072|dh=0.6813986456597196|dt=gov.census.aff.domain.map.EnglishMapExtent|if=gif|cx=-71.15124807619648|cy=42.310995000000005|zl=6|pz=6|bo=|bl=|ft=350:349:335:389:388:332:331|fl=403:381:204:380:369:379:368|g=38500US11221120|ds=DEC_2000_SF3_U|sb=50|tud=false|db=060|mn=391|mx=1400|cc=1|cm=1|cn=5|cb=|um=Dollars|pr=0|th=DEC_2000_SF3_U_M00025|sf=N|sg=&-CONTEXT=tm&-tree_id=403&-errMsg=&-redoLog=false&-all_geo_types=N&-geo_id=38500US11221120&-format=&-_lang=en