DELAWARE, a South Atlantic state of the United States of America, one of the thirteen original states, situated between 38° 27′ and 39° 50′ N. lat. and between 75° 2′ and 75° 47′ W. long. (For map see [Maryland].) It is bounded N. and N.W. by Pennsylvania, E. by the Delaware river and Delaware Bay, which separate it from New Jersey, and by the Atlantic Ocean; S. and W. by Maryland. With the exception of Rhode Island it is the smallest state in the Union, its area being 2370 sq. m., of which 405 sq. m. are water surface.

Physical Features.—Delaware lies on the Atlantic coastal plain, and is for the most part level and relatively low, its average elevation above the sea being about 50 ft. It is situated in the eastern part of the peninsula formed by Chesapeake Bay and the estuary of the Delaware river. In the extreme N. the country is rolling, with moderately high hills, moderately deep valleys and rapid streams. West of Wilmington there rises a ridge which crosses the state in a north-westerly direction and forms a watershed between Christiana and Brandywine creeks, its highest elevation above sea-level being 280 ft. South of the Christiana there begins another elevation, sandy and marshy, which extends almost the entire length of the state from N.W. to S.E., and forms a second water-parting. The streams that drain the state are small and insignificant. Those of the N. flow into Brandywine and Christiana creeks, whose estuary into Delaware river forms Wilmington harbour; those of the S.W. have a common outlet in the Nanticoke river of Maryland; those of the E. empty into Delaware Bay and the Atlantic Ocean. The principal harbours are those of Wilmington, New Castle and Lewes. The shore of the bay is marshy, that of the Atlantic is sandy. In Kent county there are more than 60,000 acres of tidal marshland, some of which has been reclaimed by means of dykes; Cypress Swamp in the extreme S. has an area of 50,000 acres. The soils of the N. are clays, sometimes mixed with loam; those of the central part are mainly loams; while those of the S. are sands.

Minerals are found only in the N. part of the state. Those of economic value are kaolin, mined chiefly in the vicinity of Hockessin, New Castle county, the static kaolin product being exceeded in 1903 only by that of Pennsylvania among the states of the United States; granite, used for road-making and rough construction work, found near Wilmington; and brick and tile clays; but the value of their total product in 1902 was less than $500,000. In 1906 the total mineral product was valued at $814,126, of which $237,768 represented clay products and $146,346 stone. In 1902 only 2.2% of the wage-earners were engaged in mining.

The forests, which once afforded excellent timber, including white oak for shipbuilding, have been greatly reduced by constant cutting; in 1900 it was estimated that 700 sq. m. were wooded, but practically none of this stand was of commercial importance. The fisheries, chiefly oyster, sturgeon and shad, yield an annual product valued at about $250,000.

The proximity of the Delaware and Chesapeake bays help to give Delaware a mild and temperate climate. The mean annual temperature is approximately 55° F., ranging from 52° in the S. to 56° in the N., and the extremes of heat and cold are 103° in the summer and -17° in the winter. The annual rainfall, greater on the coast than inland, ranges from 40 to 45 in.

Industry and Trade.—Delaware is pre-eminently an agricultural state. In 1900 85% of its total land surface was enclosed in farms—a slight decline since 1880. Seven-tenths of this was improved land, and the expenditure per farm for fertilizers, greater in 1890 than the average of the Atlantic states, approximated $55 per farm in 1900. In 1899 Delaware spent more per acre for fertilizers than any of the other states except New Jersey, Rhode Island and Maryland. The average size of farms, as in the other states, has declined, falling from 124.6 acres in 1880 to 110.1 acres in 1900. A large proportion of farms (49.7%) were operated by the owners, and the prevailing form of tenantry was the share system by which 42.5% of the farms were cultivated, while 8.24% of the farms were operated by negroes; these represented less than 4% of the total value of farm property, the average value of farms operated by negroes being $17 per acre, that of farms operated by whites, $23 per acre. The total value of farm products in 1900 was $9,190,777, an increase of 30% over that of 1890, while the cultivation of cereals suffered on account of the competition of the western states. Indian corn and wheat form the two largest crops, their product in 1900 being respectively 24% and 52% greater than in 1890; but these crops when compared with those of other states are relatively unimportant. In 1906 the acreage of Indian corn was 196,472 acres with a yield of 5,894,160 bushels valued at $2,475,547, and the acreage of wheat was 121,745 acres with a yield of 1,947,920 bushels valued at $1,383,023. The value of the fruit crop, for which Delaware has long been noted, also increased during the same decade, but disease and frost caused a marked decline in the production of peaches, a loss balanced by an increased production of apples, pears and other orchard fruits. Large quantities of small fruits, particularly of strawberries, raspberries and blackberries, are produced, the southern portion of Sussex county being particularly favourable for strawberry culture. The vicissitudes of fruit raising have also caused increasing attention to be paid to market gardening, dairying and stock raising, particularly to market gardening, an industry which is favoured by the proximity of large cities. The same influence also explains, partly at least, the decrease (of 13%) in the value of farm property between 1890 and 1900.

The development of manufacturing in Delaware has not been so extensive as its favourable situation relative to the other states, the facilities for water and railway transportation, and the proximity of the coal and iron fields of Pennsylvania, would seem to warrant. In 1905 the wage-earners engaged in manufacturing (under the factory system) numbered 18,475, and the total capital invested in manufacturing was $50,925,630; the gross value of products was $41,160,276; the net value (deducting the value of material purchased in partly manufactured form) was $16,276,470. The principal industry was the manufacture of iron and steel products, which, including steel and rolling mills, car, foundry and machine shops, and shipyards, represented more than 30% of the total capital, and approximately 25% of the total gross product of the manufactures in the state. The tanning, currying and finishing of leather ranks second in importance, with a gross product ($10,250,842) 9% greater than that of 1900, and constituting about one-fourth of the gross factory product of the state in 1905; and the manufacture of food products ranked third, the value of the products of the fruit canning and preserving industry having more than doubled in the decade 1890-1900, but falling off a little more than 7% in 1900-1905. The manufacture of paper and wood pulp showed an increased product in 1905 19.1% greater than in 1900; and flour and grist mill products were valued in 1905 43.6% higher than in 1900. In the grand total of manufactured products, however, the state showed in 1905 a decrease of 4% from 1900. The great manufacturing centre is Wilmington, where in 1905 almost two-thirds of the capital was invested, and nearly three-fourths of the product was turned out. There is much manufacturing also at New Castle.

Delaware has good facilities for transportation. Its railway mileage in January 1907 was 333.6 m; the Philadelphia, Baltimore & Washington (Pennsylvania system), the Baltimore & Philadelphia (Baltimore & Ohio system), and the Wilmington & Northern (Philadelphia & Reading system) cross the northern part of the state, while the Delaware railway (leased by the Philadelphia, Baltimore & Washington) runs the length of the state below Wilmington, and another line, the Maryland, Delaware & Virginia (controlled by the Baltimore, Chesapeake & Atlantic railway, which is related to the Pennsylvania system), connects Lewes, Del., with Love Point, Md., on the Chesapeake Bay. There is no state railway commission, and the farmers of southern Delaware have suffered from excessive freight rates. The Delaware & Chesapeake Canal (13½ m. long, 66 ft. wide and 10 ft. deep) crosses the N. part of the state, connecting Delaware river and Chesapeake Bay, and thus affords transportation by water from Baltimore to Philadelphia. The canal was completed in 1829; in 1907 a commission appointed by the president to report on a route for a waterway between Chesapeake and Delaware bays selected the route of this canal. The states of Maryland and Delaware aided in its construction, and in 1828 the national government also made an appropriation. Wilmington is a customs district in which New Castle and Lewes are included; but its trade is largely coastwise. Rehoboth and Indian River bays are navigable for vessels of less than 6 ft. draft. Opposite Lewes is the Delaware Breakwater (begun in 1818 and completed in 1869, at a cost of more than $2,000,000), which forms a harbour 16 ft. deep. In 1897-1901 the United States government constructed a harbour of refuge, formed by a second breakwater 2¼ m. N. of the existing one; its protected anchorage is 552 acres and the cost was more than $2,090,000. The harbour is about equidistant from New York, Philadelphia, and the capes of Chesapeake Bay, and is used chiefly by vessels awaiting orders to ports for discharge or landing. The national government also made appropriations for opening an inland waterway from Lewes to Chincoteague Bay, Virginia, for improving Wilmington harbour, and for making navigable several of the larger streams of the state.

Population.—The population in 1880 was 146,608; in 1890, 168,493, an increase of 14.9%; in 1900, 184,735, a further increase of 9.6%; in 1910, 202,322. The rate of increase before 1850 was considerably smaller than the rate after that date. Of the population in 1900, 92.5% was native born and 7.5% was foreign-born. The negro population was 30,697, or 16.6% of the total. In Indian River Hundred, Sussex county, there formerly lived a community of people,—many of whom are of the fair Caucasian type,—called “Indians” or “Moors”; they are now quite generally dispersed throughout the state, especially in Kent and Sussex counties. Their origin is unknown, but according to local tradition they are the descendants of some Moorish sailors who were cast ashore many years ago in a shipwreck; their own tradition is that they are descended from the children of an Irish mother and a negro father, these children having intermarried with Indians of the Nanticoke tribe. They have, where practicable, separate churches and schools, the latter receiving state aid. The urban population of Delaware (i.e. of Wilmington, the only city having more than 5000 inhabitants) was, in 1900, 41.4% of the state’s population. There were thirty-five incorporated cities and towns. The largest of these was the city of Wilmington, with 76,508 inhabitants. The city next in size, New Castle, had a population of 3380, while the largest town, Dover, the capital of the state, had 3329. The total number of communicants of all denominations in 1906 was 71,251,—32,402 Methodists, 24,228 Roman Catholics, 5200 Presbyterians, 3796 Protestant Episcopalians, and 2921 Baptists.