Ilsfeld is a municipality in the district of Heilbronn in Baden-Württemberg in Germany, on the outer edge of the Stuttgart Metropolitan Region.

The village of Ilsfeld was largely destroyed by a fire in 1904, and was rebuilt with public buildings in a rustic Württemberg style with Jugendstil elements.

Parts of the town fall within two natural areas: Schwäbisch-Fränkische Waldberge (Swabian-Franconian Wooded Mountains) and Neckarbecken (Neckar Basin).

After the Franks expanded into the area, five ancient Alemannic settlements were subsumed in a royal court location that is the basis of the present-day town.

The first recorded mention of Ilsfeld itself is in an 1102 charter of Emperor Henry IV granting land in Ilisvelt to the Bishopric of Speyer.

The name presumably designated the entire area and may have been derived from the Schozach, whose upper reaches appear to have been called the Ils.

In 1450, during Count Ulrich V's war against 30 Swabian Imperial Cities, Ilsfeld was attacked by Heilsbronn forces; the village was laid waste, with 40 people killed and 300 head of livestock removed.

In 1460 the Battle of Wüstenhausen took place there, with Duke Ulrich defeating the forces of Frederick the Victorious, Elector Palatine.

By August 8, the Württemberg Ministerial Division of Road and Water Construction had organized a rebuilding committee led by Oberbaurat Richard Leibbrand, which began by erecting a temporary barracks encampment to house the homeless over the winter.

The major public buildings (town hall, church, school, teacher's and minister's residences, and the Dorastift kindergarten) were designed by the architects Paul Schmohl and Georg Stähelin in a traditional Swabian style with Jugendstil elements.

Hugo Heinrich, elected Schultheiß in 1916 (his title became Bürgermeister, mayor, in 1932) became a member of the Nazi Party in 1934 and remained in office throughout the Third Reich; he petitioned to retire for reasons of ill health in 1937 but was unable to obtain the necessary medical certification.

Construction began in 1935 on the Reichsautobahn segment between Heilbronn and Stuttgart, now Bundesautobahn 81, which passes through the southeastern part of Ilsfeld.

During the war, Ilsfeld was at first largely spared by air raids, although surrounding localities were heavily affected beginning in 1941.

In the final days of the war, on April 14 and 16, 1945, Ilsfeld itself became a bombing target; about 50 buildings were destroyed and several people were killed.

The railroad was closed in 1967; together with the proximity of the autobahn exit, this meant increasing traffic problems in the villages of Ilsfeld and Auenstein.

Since the 1950s, an influx of business and industry has caused considerable development in the area, with processing soon replacing agriculture as the primary source of employment.

In February 1970, a large section of the Planmauer collapsed; renovation lasted until 1974, and plans were made at the same time for renewal of the now aged village centre, which was carried out in the 1980s.

The blazon of the coat of arms of Ilsfeld is: On a field of silver, a black stag's antler (the Württemberg heraldic emblem) over a rooted green tree.

The arms were adopted by the unified town after the annexation of Auenstein, and were officially granted by the District of Heilbronn on January 24, 1978.

The nearby town hall has a Jugendstil entrance, and the school, the parsonage, and the Dorastift kindergarten are similar in style.

The buildings erected along the main street after the fire in many cases have massive ground floors influenced by Jugendstil, but mostly traditional Fachwerk (half-timbering) on their upper stories.

It takes place on the last weekend in August; in the 1970s it developed into a peddlers' market with a fun fair and events marquee.

[14] Ilsfeld is a wine-growing area, with vineyards belonging to the Schozachtal, Wunnenstein und Kirchenweinberg sections of the Württembergisch Unterland wine-producing region.

From 1899 to 1968, Ilsfeld, Auenstein and Schozach had stations on the narrow-gauge Bottwar Valley Railway (Marbach am Neckar – Heilbronn South); the tracks have been taken up and the Alb-Neckar bicycle trail (Eberbach – Ulm) now runs along most of the route.

The Sportclub Ilsfeld (SCI) offers badminton, soccer, judo, karate, track and field, gymnastics, and volleyball.