squadrons, the Maryland State Police Aviation
Division (MED-EVAC), and the Baltimore
County Police Marine Division.

State Railroads. The State currently runs three
commuter and five freight lines. The commuter
lines include two Baltimore-Washington lines and
one Brunswick-Washington line. Freight lines
include four on Maryland's Eastern Shore and
one through Frederick and Carroll counties. The
five Class I railroads presently operating in
Maryland cover almost 1,000 route miles.

Incorporated Cities Over 10,000 Population, 1984
(estimated). Baltimore, 763,570; Rockvule, 45,065;
Bowie, 34,461; Hagerstown, 33,036; Frederick,
31,943; Annapolis, 31,898; Gaithersburg, 29,548;
Cumberland, 24,090; College Park, 22,569;
Salisbury, 16,696; Greenbelt, 16,653; Takoma
Park, 14,863; New Carrollton, 12,401; Laurel,
11,920; Hyattsvillc, 11,563; Aberdeen, 11,507;
Cambridge, 11,207.

Unincorporated Areas Over 20,000 Population,
1980. Bethesda, 83,022; Silver Spring, 72,893;
Dundalk, 71,293; Columbia, 52,518; Wheaton-
Glenmont, 48,698; Aspen Hill, 47,445; Potomac,
40,402; Essex, 39,614; Glen Burnie, 37,263; Oxon
Hill, 36,262; Parkville, 35,139; Catonsville,
33,206; Suitland-Silver Hill, 32,164; Towson,
31,085; Security, 29,553; Lochearn, 26,904;
Middle River, 26,756; Randallstown, 25,927;
South Gate, 24,185; Pikesville, 22,525; Ellicott
City, 21,784; Carney, 21,488; Severna Park,
21,253; Milford Mill, 20,334; Arbutus, 20,163.

Education. Public school enrollment (1985-86):
671,560 students in 743 elementary schools, 194
middle/combined schools, and 283 high schools.
Average cost (1984-85) per pupil including
transportation $3,673 (excluding transportation
$3,487). Public high school graduates (1985):
48,229; those intending to continue their
education: 47 percent. Nonpublic school
enrollment (1985): 137,419 students in 341

kindergartens or pre-kindergartens, 307
elementary schools, 9 middle schools, 147
combined schools, and 67 high schools. A three-
part system of public higher education consists of
19 community colleges, 8 four-year colleges and
universities, and five campuses of the University
of Maryland. Among independent postsecondary
institutions are 4 two-year colleges, 20 four-year
colleges and universities, and approximately 206
proprietary schools. The U.S. Naval Academy in
Annapolis is a federal institution.

Libraries, 1985. Twenty-four public library
systems include 199 public libraries and 26
bookmobiles, with total collections of 11,576,694
items. School library media centers are located in
1,220 elementary, middle, and secondary schools,
with total collections of nearly 13 million items.
The Maryland State Library Network serves over
400 libraries throughout the State primarily
through interlibrary loan. The Network is
composed of the State Library Resource Center
(Enoch Pratt Free Library, Central Building),
three Regional Library Resource Centers,
(Eastern Shore, Southern Maryland, Western
Maryland), six Referral Centers (Anne Arundel,
Baltimore, Harford, Howard, Montgomery, and
Prince George's counties), and academic libraries,
including Catonsville and Essex Community
Colleges, The Johns Hopkins University Libraries,
Towson State University, and Libraries of the
University of Maryland. Every Maryland library
is eligible to participate in the State Library
Network.

Medical Care, 1986. Personnel licensed to
practice in the State: 29,892 physicians; 39,000
registered nurses; 11,000 practical nurses; 3,335
dentists; 1,577 dental hygienists. Licensed
facilities: 84 hospitals, 207 nursing homes
(comprehensive care), 25 alcoholic intermediate
care facilities, 53 domiciliary care homes, 8
residential treatment centers for emotionally
disturbed youth, and 9 mental retardation centers.