BALDOCK, a market-town of the county of Hertford and Hundred of Broadwater. It is thirty-eight miles from London, on one of the great roads to York. The market is held on Thursday. The town belonged formerly to the knights-templars, who are said to have built the four large churches still remaining there. The population in 1801 amounted to 1283, in 1811 to 1438, and in 1821 to 1550.