1990 U.S. CENSUS OF POPULATION AND HOUSING
Status: Obtained in 1996, data completed in December 1995

GENERAL DESCRIPTION

The US Bureau of Census developed and now distributes the Topologically Intergrated Geographic Encoding and Referencing System (TIGER) extract data sets as part of the 1990 Decenial Census. The TIGER network of lines forms the boundaries of ‘census block’ polygons, the smallest units used by the Census Bureau in tabulating its data. Census blocks are often the city blocks. Census block group is the second smallest unit.

SOURCE/CONVERSION METHODOLOGY

The census datalayers that the Information Services Department has obtained from MassGIS, are the block group level data for Norfolk county and the TIGER file for Brookline. The block group level data includes information on population, race, income, housing value, water supplies, and the sewer/septic systems. The TIGER data has address ranges build-in so that it is very useful for address matching.

COVERAGE NAMES

BG_NORF

TIG_46

FEATURE TYPES

POLYGONS

ARCS

ATTRIBUTES

The BG_NORF coverage’s polygon attribute table (bg_norf.pat):

Arc: items bg_norf.pat

COLUMN ITEM NAME WIDTH OUTPUT TYPE N.DEC ALTERNATE

NAME

1

 AREA

8

18

 F

5

 -

9

 PERIMETER

8

18

 F

5

 -

17

 BG_NORF#

4

5

 B - -

21

 BG_NORF-ID

4

5

 B - -

25

 MATCHID-150

10

10

 C - -

35

 BLCKGR

1

1

 C - -

36

 TRACTBNA

6

6

 C - -

42

 CNTY

3

3

 C - -

45

 HU100

4

9

 B - -

49

 POP100

4

9

 B - -

53

 PERSONS

4

9

 B - -

57

 HOUSEHOLDS

4

9

 B - -

61

 WHITES

4

9

 B - -

65

 BLACKS

4

9

 B - -

69

 AMERINDS

4

9

 B - -

73

 ASIANS

4

9

 B - -

77

 OTHER

4

9

 B - -

81

 HISPANICS

4

9

 B - -

85

 NONHISWHT

4

9

 B - -

89

 NONHISBLK

4

9

 B - -

93

 NONHISASN

4

9

 B - -

97

 NONHISIND

4

9

 B - -

101

 NONHISOTH

4

9

 B - -

105

 HISWHT

4

9

 B - -

109

 HISBLK

4

9

 B - -

113

 HISIND

4

9

 B - -

117

 HISASN

4

9

 B - -

121

 HISOTH

4

9

 B - -

125

 PIHH1

4

9

 B - -

129

 PIHH2

4

9

 B - -

133

 PIHH3

4

9

 B - -

137

 PIHH4

4

9

 B - -

141

 PIHH5

4

9

 B - -

145

 PIHH6

4

9

 B - -

149

 PIHH7

4

9

 B - -

153

 INC<5000

4

9

 B - -

157

 INC<10000

4

9

 B - -

161

 INC<12500

4

9

 B - -

165

 INC<15000

4

9

 B - -

169

 INC<17500

4

9

 B - -

173

 INC<20000

4

9

 B - -

177

 INC<22500

4

9

 B - -

181

 INC<25000

4

9

 B - -

185

 INC<27500

4

9

 B - -

189

 INC<30000

4

9

 B - -

193

 INC<32500

4

9

 B - -

197

 INC<35000

4

9

 B - -

201

 INC<37500

4

9

 B - -

205

 INC<40000

4

9

 B - -

209

 INC<42500

4

9

 B - -

213

 INC<45000

4

9

 B - -

217

 INC<47500

4

9

 B - -

221

 INC<50000

4

9

 B - -

225

 INC<55000

4

9

 B - -

229

 INC<60000

4

9

 B - -

233

 INC<75000

4

9

 B - -

237

 INC<100K

4

9

 B - -

241

 INC<125K

4

9

 B - -

245

 INC<150K

4

9

 B - -

249

 INC>150K

4

9

 B - -

253

 BLKPER

4

9

 B - -

257

 WHTPER

4

9

 B - -

261

 INDPER

4

9

 B - -

265

 ASNPER

4

9

 B - -

269

 OTHPER

4

9

 B - -

273

 HISPER

4

9

 B - -

277

 SUMRACE

4

9

 B - -

281

 PUBWAT

4

9

 B - -

285

 DRILLWELL

4

9

 B - -

289

 DUGWELL

4

9

 B - -

293

 OTHWAT

4

9

 B - -

297

 PUBSEW

4

9

 B - -

301

 SEPTIC

4

9

 B - -

305

 OTHSEW

4

9

 B - -

309

 VAL<15K

4

9

 B - -

313

 VAL<20K

4

9

 B - -

317

 VAL<25K

4

9

 B - -

321

 VAL<30K

4

9

 B - -

325

 VAL<35K

4

9

 B - -

329

 VAL<40K

4

9

 B - -

333

 VAL<45K

4

9

 B - -

337

 VAL<50K

4

9

 B - -

341

 VAL<60K

4

9

 B - -

345

 VAL<75K

4

9

 B - -

349

 VAL<100K

4

9

 B - -

353

 VAL<125K

4

9

 B - -

357

 VAL<150K

4

9

 B - -

361

 VAL<175K

4

9

 B - -

365

 VAL<200K

4

9

 B - -

369

 VAL<250K

4

9

 B - -

373

 VAL<300K

4

9

 B - -

377

 VAL<400K

4

9

 B - -

381

 VAL<500K

4

9

 B - -

385

 VAL>500K

4

9

 B - -

389

 MEDHHINC

4

9

 B - -

393

 MEDHHVAL

4

9

 B - -

397

 MINPER

4

9

 B - -

401

 SCORE

1

1

 I - -

402

 POPDEN

4

9

 B - -

406

 POPDENSCORE

1

1

 I - -

**

 Redefined Item**

34

 WATER

1

1

 C - -

* See Appendix G for detail

Sample record from the BG_NORF polygon attribute table:

Arc: list bg_norf.pat

3
AREA =

1983559
PERIMETER =

7195.383
BG_NORF# =

3
BG_NORF-ID =

2
MATCHID-150 =

2.14E+08
BLCKGR =

3
TRACTBNA =

400200
CNTY =

21
HU100 =

635
POP100 =

1504
PERSONS =

1463
HOUSEHOLDS =

678
WHITES =

1260
BLACKS =

0
AMERINDS =

0
ASIANS =

203
OTHER =

0
HISPANICS =

56
NONHISWHT =

1204
NONHISBLK =

0
NONHISASN =

203
NONHISIND =

0
NONHISOTH =

0
HISWHT =

56
HISBLK =

0
HISIND =

0
HISASN =

0
HISOTH =

0
PIHH1 =

219
PIHH2 =

306
PIHH3 =

89
PIHH4 =

22
PIHH5 =

20
PIHH6 =

13
PIHH7 =

9
INC<5000 =

13
INC<10000 =

20
INC<12500 =

23
INC<15000 =

11
INC<17500 =

22
INC<20000 =

0
INC<22500 =

22
INC<25000 =

15
INC<27500 =

7
INC<30000 =

13
INC<32500 =

36
INC<35000 =

21
INC<37500 =

34
INC<40000 =

6
INC<42500 =

22
INC<45000 =

0
INC<47500 =

68
INC<50000 =

27
INC<55000 =

63
INC<60000 =

0
INC<75000 =

92
INC<100K =

78
INC<125K =

44
INC<150K =

0
INC>150K =

41
BLKPER =

0
WHTPER =

86
INDPER =

0
ASNPER =

13
OTHPER =

0
HISPER =

3
SUMRACE =

1463
PUBWAT =

640
DRILLWELL =

0
DUGWELL =

0
OTHWAT =

0
PUBSEW =

640
SEPTIC =

0
OTHSEW =

0
VAL<15K =

0
VAL<20K =

0
VAL<25K =

0
VAL<30K =

0
VAL<35K =

0
VAL<40K =

0
VAL<45K =

0
VAL<50K =

0
VAL<60K =

0
VAL<75K =

0
VAL<100K =

0
VAL<125K =

0
VAL<150K =

0
VAL<175K =

0
VAL<200K =

0
VAL<250K =

7
VAL<300K =

5
VAL<400K =

22
VAL<500K =

19
VAL>500K =

4
MEDHHINC =

48056
MEDHHVAL =

375000
MINPER =

17
SCORE =

0
POPDEN =

33
POPDENSCORE =

4

 

COORDINATE SYSTEM

Massachusetts State Plane North America Datum (NAD) 83 Feet